921022040379 has 32 divisors (see below), whose sum is σ = 1440382579200. Its totient is φ = 523256020896.

The previous prime is 921022040311. The next prime is 921022040401. The reversal of 921022040379 is 973040220129.

It is not a de Polignac number, because 921022040379 - 2¹³ = 921022032187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (921022090379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2408877 + ... + 2764910.

It is an arithmetic number, because the mean of its divisors is an integer number (45011955600).

Almost surely, 2^921022040379 is an apocalyptic number.

921022040379 is a deficient number, since it is larger than the sum of its proper divisors (519360538821).

921022040379 is a wasteful number, since it uses less digits than its factorization.

921022040379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5173984 (or 5173970 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 921022040379 in words is "nine hundred twenty-one billion, twenty-two million, forty thousand, three hundred seventy-nine".