90282774840 has 64 divisors (see below), whose sum is σ = 270904642560. Its totient is φ = 24070400640.

The previous prime is 90282774823. The next prime is 90282774847. The reversal of 90282774840 is 4847728209.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90282774847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 520305 + ... + 671775.

It is an arithmetic number, because the mean of its divisors is an integer number (4232885040).

Almost surely, 2^90282774840 is an apocalyptic number.

It is an amenable number.

90282774840 is an abundant number, since it is smaller than the sum of its proper divisors (180621867720).

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

90282774840 is a wasteful number, since it uses less digits than its factorization.

90282774840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156452 (or 156448 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 90282774840 in words is "ninety billion, two hundred eighty-two million, seven hundred seventy-four thousand, eight hundred forty".