90251426850 has 96 divisors (see below), whose sum is σ = 248816408064. Its totient is φ = 21499084800.

The previous prime is 90251426831. The next prime is 90251426869. The reversal of 90251426850 is 5862415209.

It is an interprime number because it is at equal distance from previous prime (90251426831) and next prime (90251426869).

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 47 ways as a sum of consecutive naturals, for example, 686047 + ... + 806946.

It is an arithmetic number, because the mean of its divisors is an integer number (2591837584).

Almost surely, 2^90251426850 is an apocalyptic number.

90251426850 is an abundant number, since it is smaller than the sum of its proper divisors (158564981214).

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

90251426850 is a wasteful number, since it uses less digits than its factorization.

90251426850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493052 (or 1493047 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 90251426850 in words is "ninety billion, two hundred fifty-one million, four hundred twenty-six thousand, eight hundred fifty".