86809977025 has 24 divisors (see below), whose sum is σ = 110239462080. Its totient is φ = 67776421440.

The previous prime is 86809977017. The next prime is 86809977031. The reversal of 86809977025 is 52077990868.

It is not a de Polignac number, because 86809977025 - 2³ = 86809977017 is a prime.

It is a super-2 number, since 2×86809977025² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1281711 + ... + 1347739.

It is an arithmetic number, because the mean of its divisors is an integer number (4593310920).

Almost surely, 2^86809977025 is an apocalyptic number.

It is an amenable number.

86809977025 is a deficient number, since it is larger than the sum of its proper divisors (23429485055).

86809977025 is a wasteful number, since it uses less digits than its factorization.

86809977025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67305 (or 67300 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 61.

The spelling of 86809977025 in words is "eighty-six billion, eight hundred nine million, nine hundred seventy-seven thousand, twenty-five".