90031761801044 has 24 divisors (see below), whose sum is σ = 180152356238400. Its totient is φ = 38566005206976.

The previous prime is 90031761801029. The next prime is 90031761801061. The reversal of 90031761801044 is 44010816713009.

It is a junction number, because it is equal to n+sod(n) for n = 90031761800986 and 90031761801004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793090769 + ... + 793204280.

It is an arithmetic number, because the mean of its divisors is an integer number (7506348176600).

Almost surely, 2^{90031761801044} is an apocalyptic number.

It is an amenable number.

90031761801044 is an abundant number, since it is smaller than the sum of its proper divisors (90120594437356).

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

90031761801044 is a wasteful number, since it uses less digits than its factorization.

90031761801044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586297087 (or 1586297085 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 90031761801044 in words is "ninety trillion, thirty-one billion, seven hundred sixty-one million, eight hundred one thousand, forty-four".