904500664625 has 16 divisors (see below), whose sum is σ = 1139993249616. Its totient is φ = 716436160000.

The previous prime is 904500664589. The next prime is 904500664663. The reversal of 904500664625 is 526466005409.

It can be written as a sum of positive squares in 8 ways, for example, as 163048786849 + 741451877776 = 403793^2 + 861076^2 .

It is not a de Polignac number, because 904500664625 - 2⁸ = 904500664369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 904500664625.

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, 35809184 + ... + 35834433.

It is an arithmetic number, because the mean of its divisors is an integer number (71249578101).

Almost surely, 2^904500664625 is an apocalyptic number.

It is an amenable number.

904500664625 is a deficient number, since it is larger than the sum of its proper divisors (235492584991).

904500664625 is a wasteful number, since it uses less digits than its factorization.

904500664625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71643733 (or 71643723 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 904500664625 in words is "nine hundred four billion, five hundred million, six hundred sixty-four thousand, six hundred twenty-five".