90861904757064 has 64 divisors (see below), whose sum is σ = 259683567575040. Its totient is φ = 25952731675200.

The previous prime is 90861904757053. The next prime is 90861904757081. The reversal of 90861904757064 is 46075740916809.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 90861904756986 and 90861904757004.

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, 80820712 + ... + 81937239.

It is an arithmetic number, because the mean of its divisors is an integer number (4057555743360).

Almost surely, 2^{90861904757064} is an apocalyptic number.

It is an amenable number.

90861904757064 is an abundant number, since it is smaller than the sum of its proper divisors (168821662817976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90861904757064 is a wasteful number, since it uses less digits than its factorization.

90861904757064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162761290 (or 162761286 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 66.

The spelling of 90861904757064 in words is "ninety trillion, eight hundred sixty-one billion, nine hundred four million, seven hundred fifty-seven thousand, sixty-four".