90612493625 has 16 divisors (see below), whose sum is σ = 113339730816. Its totient is φ = 72326316400.

The previous prime is 90612493613. The next prime is 90612493633. The reversal of 90612493625 is 52639421609.

It is a happy number.

It is not a de Polignac number, because 90612493625 - 2⁸ = 90612493369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90612493625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 762797 + ... + 873546.

It is an arithmetic number, because the mean of its divisors is an integer number (7083733176).

Almost surely, 2^90612493625 is an apocalyptic number.

It is an amenable number.

90612493625 is a deficient number, since it is larger than the sum of its proper divisors (22727237191).

90612493625 is a wasteful number, since it uses less digits than its factorization.

90612493625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636801 (or 1636791 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 90612493625 in words is "ninety billion, six hundred twelve million, four hundred ninety-three thousand, six hundred twenty-five".