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12508680501 = 33463284463
BaseRepresentation
bin10111010011001001…
…10101000100110101
31012021202021210211000
423221210311010311
5201104210234001
65425120233513
7621656013162
oct135144650465
935252253730
1012508680501
115339907889
12251116b899
1312446689c5
148693d3069
154d3250a86
hex2e9935135

12508680501 has 8 divisors (see below), whose sum is σ = 18531378560. Its totient is φ = 8339120316.

The previous prime is 12508680497. The next prime is 12508680551. The reversal of 12508680501 is 10508680521.

12508680501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12508680501 - 22 = 12508680497 is a prime.

It is a super-2 number, since 2×125086805012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12508680551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231642205 + ... + 231642258.

It is an arithmetic number, because the mean of its divisors is an integer number (2316422320).

Almost surely, 212508680501 is an apocalyptic number.

It is an amenable number.

12508680501 is a deficient number, since it is larger than the sum of its proper divisors (6022698059).

12508680501 is an equidigital number, since it uses as much as digits as its factorization.

12508680501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463284472 (or 463284466 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The spelling of 12508680501 in words is "twelve billion, five hundred eight million, six hundred eighty thousand, five hundred one".

Divisors: 1 3 9 27 463284463 1389853389 4169560167 12508680501