90322478072 has 64 divisors (see below), whose sum is σ = 182714184000. Its totient is φ = 41747650560.

The previous prime is 90322478039. The next prime is 90322478087. The reversal of 90322478072 is 27087422309.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 969872 + ... + 1058912.

It is an arithmetic number, because the mean of its divisors is an integer number (2854909125).

Almost surely, 2^90322478072 is an apocalyptic number.

90322478072 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

90322478072 is an abundant number, since it is smaller than the sum of its proper divisors (92391705928).

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

90322478072 is a wasteful number, since it uses less digits than its factorization.

90322478072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89256 (or 89252 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 90322478072 in words is "ninety billion, three hundred twenty-two million, four hundred seventy-eight thousand, seventy-two".