82880025957 has 10 divisors (see below), whose sum is σ = 123808433958. Its totient is φ = 55253350584.

The previous prime is 82880025911. The next prime is 82880025959. The reversal of 82880025957 is 75952008828.

It can be written as a sum of positive squares in only one way, i.e., 41778951201 + 41101074756 = 204399^2 + 202734^2 .

It is not a de Polignac number, because 82880025957 - 2¹⁶ = 82879960421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82880025959) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 511605018 + ... + 511605179.

Almost surely, 2^82880025957 is an apocalyptic number.

It is an amenable number.

82880025957 is a deficient number, since it is larger than the sum of its proper divisors (40928408001).

82880025957 is a wasteful number, since it uses less digits than its factorization.

82880025957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023210209 (or 1023210200 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 82880025957 in words is "eighty-two billion, eight hundred eighty million, twenty-five thousand, nine hundred fifty-seven".