90012473868 has 96 divisors (see below), whose sum is σ = 228527103168. Its totient is φ = 27459993600.

The previous prime is 90012473833. The next prime is 90012473897. The reversal of 90012473868 is 86837421009.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23555398 + ... + 23559218.

It is an arithmetic number, because the mean of its divisors is an integer number (2380490658).

Almost surely, 2^90012473868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90012473868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114263551584).

90012473868 is an abundant number, since it is smaller than the sum of its proper divisors (138514629300).

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

90012473868 is a wasteful number, since it uses less digits than its factorization.

90012473868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7003 (or 7001 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 90012473868 in words is "ninety billion, twelve million, four hundred seventy-three thousand, eight hundred sixty-eight".