921236838754 has 16 divisors (see below), whose sum is σ = 1442650958208. Its totient is φ = 440373048192.

The previous prime is 921236838751. The next prime is 921236838763. The reversal of 921236838754 is 457838632129.

It is a happy number.

It is a pancake number, because a pancake can be divided into 921236838754 parts by 1357377 straight cuts.

It is not an unprimeable number, because it can be changed into a prime (921236838751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4871742 + ... + 5057305.

It is an arithmetic number, because the mean of its divisors is an integer number (90165684888).

Almost surely, 2^921236838754 is an apocalyptic number.

921236838754 is a deficient number, since it is larger than the sum of its proper divisors (521414119454).

921236838754 is a wasteful number, since it uses less digits than its factorization.

921236838754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9931089.

The product of its digits is 17418240, while the sum is 58.

The spelling of 921236838754 in words is "nine hundred twenty-one billion, two hundred thirty-six million, eight hundred thirty-eight thousand, seven hundred fifty-four".