90203409882 has 12 divisors (see below), whose sum is σ = 195440721450. Its totient is φ = 30067803288.

The previous prime is 90203409841. The next prime is 90203409953. The reversal of 90203409882 is 28890430209.

It can be written as a sum of positive squares in only one way, i.e., 55252733481 + 34950676401 = 235059^2 + 186951^2 .

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, 2505650257 + ... + 2505650292.

Almost surely, 2^90203409882 is an apocalyptic number.

90203409882 is an abundant number, since it is smaller than the sum of its proper divisors (105237311568).

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

90203409882 is a wasteful number, since it uses less digits than its factorization.

90203409882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011300557 (or 5011300554 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 90203409882 in words is "ninety billion, two hundred three million, four hundred nine thousand, eight hundred eighty-two".