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7645880952025 = 522861595317957
BaseRepresentation
bin110111101000011001000…
…0001001010010011011001
31000001221100120220212220221
41233100302001022103121
52000232231010431100
624132245203520041
71416253025526601
oct157206201122331
930057316825827
107645880952025
112488666519208
12a359a6089021
13436007851654
141c60c3b47c01
15d3d484c301a
hex6f43204a4d9

7645880952025 has 24 divisors (see below), whose sum is σ = 9486327650904. Its totient is φ = 6113199206400.

The previous prime is 7645880952013. The next prime is 7645880952131. The reversal of 7645880952025 is 5202590885467.

It can be written as a sum of positive squares in 12 ways, for example, as 1547687771721 + 6098193180304 = 1244061^2 + 2469452^2 .

It is not a de Polignac number, because 7645880952025 - 27 = 7645880951897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 425779347 + ... + 425797303.

It is an arithmetic number, because the mean of its divisors is an integer number (395263652121).

Almost surely, 27645880952025 is an apocalyptic number.

It is an amenable number.

7645880952025 is a deficient number, since it is larger than the sum of its proper divisors (1840446698879).

7645880952025 is a wasteful number, since it uses less digits than its factorization.

7645880952025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26781 (or 26776 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 61.

The spelling of 7645880952025 in words is "seven trillion, six hundred forty-five billion, eight hundred eighty million, nine hundred fifty-two thousand, twenty-five".

Divisors: 1 5 25 2861 5953 14305 17957 29765 71525 89785 148825 448925 17031533 51374977 85157665 106898021 256874885 425788325 534490105 1284374425 2672450525 305835238081 1529176190405 7645880952025