90539880892 has 12 divisors (see below), whose sum is σ = 159846958656. Its totient is φ = 44869321280.

The previous prime is 90539880883. The next prime is 90539880931. The reversal of 90539880892 is 29808893509.

It is a self number, because there is not a number n which added to its sum of digits gives 90539880892.

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, 100154284 + ... + 100155187.

It is an arithmetic number, because the mean of its divisors is an integer number (13320579888).

Almost surely, 2^90539880892 is an apocalyptic number.

It is an amenable number.

90539880892 is a deficient number, since it is larger than the sum of its proper divisors (69307077764).

90539880892 is a wasteful number, since it uses less digits than its factorization.

90539880892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200309588 (or 200309586 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 61.

The spelling of 90539880892 in words is "ninety billion, five hundred thirty-nine million, eight hundred eighty thousand, eight hundred ninety-two".