90764726918 has 8 divisors (see below), whose sum is σ = 138454668360. Its totient is φ = 44613170800.

The previous prime is 90764726917. The next prime is 90764726993. The reversal of 90764726918 is 81962746709.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×90764726918² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90764726917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384596183 + ... + 384596418.

It is an arithmetic number, because the mean of its divisors is an integer number (17306833545).

Almost surely, 2^90764726918 is an apocalyptic number.

90764726918 is a deficient number, since it is larger than the sum of its proper divisors (47689941442).

90764726918 is a wasteful number, since it uses less digits than its factorization.

90764726918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769192662.

The product of its (nonzero) digits is 9144576, while the sum is 59.

The spelling of 90764726918 in words is "ninety billion, seven hundred sixty-four million, seven hundred twenty-six thousand, nine hundred eighteen".