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74861795881 is a prime number
BaseRepresentation
bin100010110111000011…
…1000101101000101001
321011020020200021000201
41011232013011220221
52211304104432011
654220244032201
75260100523445
oct1055607055051
9234206607021
1074861795881
11298265942a4
1212613092661
1370a0777452
1438a25bd825
151e32367cc1
hex116e1c5a29

74861795881 has 2 divisors, whose sum is σ = 74861795882. Its totient is φ = 74861795880.

The previous prime is 74861795839. The next prime is 74861795923. The reversal of 74861795881 is 18859716847.

It is a balanced prime because it is at equal distance from previous prime (74861795839) and next prime (74861795923).

It can be written as a sum of positive squares in only one way, i.e., 61640475625 + 13221320256 = 248275^2 + 114984^2 .

It is a cyclic number.

It is not a de Polignac number, because 74861795881 - 211 = 74861793833 is a prime.

It is a super-2 number, since 2×748617958812 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74861795581) 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 as a sum of consecutive naturals, namely, 37430897940 + 37430897941.

It is an arithmetic number, because the mean of its divisors is an integer number (37430897941).

Almost surely, 274861795881 is an apocalyptic number.

It is an amenable number.

74861795881 is a deficient number, since it is larger than the sum of its proper divisors (1).

74861795881 is an equidigital number, since it uses as much as digits as its factorization.

74861795881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27095040, while the sum is 64.

The spelling of 74861795881 in words is "seventy-four billion, eight hundred sixty-one million, seven hundred ninety-five thousand, eight hundred eighty-one".