90569698704 has 135 divisors (see below), whose sum is σ = 262233697089. Its totient is φ = 29179918080.

The previous prime is 90569698691. The next prime is 90569698717. The reversal of 90569698704 is 40789696509.

It is a happy number.

The square root of 90569698704 is 300948.

It is a perfect power (a square), and thus also a powerful number.

90569698704 is a `hidden beast` number, since 9 + 0 + 569 + 69 + 8 + 7 + 0 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (90569698691) and next prime (90569698717).

It can be written as a sum of positive squares in only one way, i.e., 79720393104 + 10849305600 = 282348^2 + 104160^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 111952252 + ... + 111953060.

Almost surely, 2^90569698704 is an apocalyptic number.

90569698704 is the 300948-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90569698704

90569698704 is an abundant number, since it is smaller than the sum of its proper divisors (171663998385).

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

90569698704 is an equidigital number, since it uses as much as digits as its factorization.

90569698704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 63.

The spelling of 90569698704 in words is "ninety billion, five hundred sixty-nine million, six hundred ninety-eight thousand, seven hundred four".