90274939894 has 64 divisors (see below), whose sum is σ = 154996208640. Its totient is φ = 39170096640.

The previous prime is 90274939873. The next prime is 90274939919. The reversal of 90274939894 is 49893947209.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5487309 + ... + 5503735.

It is an arithmetic number, because the mean of its divisors is an integer number (2421815760).

Almost surely, 2^90274939894 is an apocalyptic number.

90274939894 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

90274939894 is a deficient number, since it is larger than the sum of its proper divisors (64721268746).

90274939894 is a wasteful number, since it uses less digits than its factorization.

90274939894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16693.

The product of its (nonzero) digits is 35271936, while the sum is 64.

The spelling of 90274939894 in words is "ninety billion, two hundred seventy-four million, nine hundred thirty-nine thousand, eight hundred ninety-four".