923134521918 has 16 divisors (see below), whose sum is σ = 2110021764480. Its totient is φ = 263752720536.

The previous prime is 923134521887. The next prime is 923134521929. The reversal of 923134521918 is 819125431329.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10989696648 + ... + 10989696731.

It is an arithmetic number, because the mean of its divisors is an integer number (131876360280).

Almost surely, 2^923134521918 is an apocalyptic number.

923134521918 is an abundant number, since it is smaller than the sum of its proper divisors (1186887242562).

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

923134521918 is a wasteful number, since it uses less digits than its factorization.

923134521918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21979393391.

The product of its digits is 466560, while the sum is 48.

The spelling of 923134521918 in words is "nine hundred twenty-three billion, one hundred thirty-four million, five hundred twenty-one thousand, nine hundred eighteen".