90754964128 has 36 divisors (see below), whose sum is σ = 184623495210. Its totient is φ = 43913677440.

The previous prime is 90754964119. The next prime is 90754964249. The reversal of 90754964128 is 82146945709.

It can be written as a sum of positive squares in only one way, i.e., 70877347984 + 19877616144 = 266228^2 + 140988^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1444843 + ... + 1506346.

Almost surely, 2^90754964128 is an apocalyptic number.

It is an amenable number.

90754964128 is an abundant number, since it is smaller than the sum of its proper divisors (93868531082).

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

90754964128 is a wasteful number, since it uses less digits than its factorization.

90754964128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951261 (or 2951222 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 90754964128 in words is "ninety billion, seven hundred fifty-four million, nine hundred sixty-four thousand, one hundred twenty-eight".