9071640904 has 32 divisors (see below), whose sum is σ = 17275275000. Its totient is φ = 4465441792.

The previous prime is 9071640883. The next prime is 9071640913. The reversal of 9071640904 is 4090461709.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 552720100 + 8518920804 = 23510^2 + 92298^2 .

It is a super-2 number, since 2×9071640904² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101022 + ... + 168370.

Almost surely, 2^9071640904 is an apocalyptic number.

It is an amenable number.

9071640904 is a deficient number, since it is larger than the sum of its proper divisors (8203634096).

9071640904 is a wasteful number, since it uses less digits than its factorization.

9071640904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67617 (or 67613 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 9071640904 is about 95245.1621028596. The cubic root of 9071640904 is about 2085.5884683310.

The spelling of 9071640904 in words is "nine billion, seventy-one million, six hundred forty thousand, nine hundred four".