90739963678 has 48 divisors (see below), whose sum is σ = 177305742720. Its totient is φ = 34007789088.

The previous prime is 90739963649. The next prime is 90739963703. The reversal of 90739963678 is 87636993709.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 964300 + ... + 1054207.

It is an arithmetic number, because the mean of its divisors is an integer number (3693869640).

Almost surely, 2^90739963678 is an apocalyptic number.

90739963678 is a deficient number, since it is larger than the sum of its proper divisors (86565779042).

90739963678 is a wasteful number, since it uses less digits than its factorization.

90739963678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018561 (or 2018548 counting only the distinct ones).

The product of its (nonzero) digits is 92588832, while the sum is 67.

The spelling of 90739963678 in words is "ninety billion, seven hundred thirty-nine million, nine hundred sixty-three thousand, six hundred seventy-eight".