90345918104 has 16 divisors (see below), whose sum is σ = 182429257920. Its totient is φ = 41698116000.

The previous prime is 90345918067. The next prime is 90345918121. The reversal of 90345918104 is 40181954309.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434355272 + ... + 434355479.

It is an arithmetic number, because the mean of its divisors is an integer number (11401828620).

Almost surely, 2^90345918104 is an apocalyptic number.

It is an amenable number.

90345918104 is an abundant number, since it is smaller than the sum of its proper divisors (92083339816).

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

90345918104 is a wasteful number, since it uses less digits than its factorization.

90345918104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868710770 (or 868710766 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 90345918104 in words is "ninety billion, three hundred forty-five million, nine hundred eighteen thousand, one hundred four".