21939083775076 has 48 divisors (see below), whose sum is σ = 43242698822400. Its totient is φ = 9663418968192.

The previous prime is 21939083775043. The next prime is 21939083775151. The reversal of 21939083775076 is 67057738093912.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20367571 + ... + 21417658.

It is an arithmetic number, because the mean of its divisors is an integer number (900889558800).

Almost surely, 2^{21939083775076} is an apocalyptic number.

21939083775076 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

21939083775076 is a deficient number, since it is larger than the sum of its proper divisors (21303615047324).

21939083775076 is a wasteful number, since it uses less digits than its factorization.

21939083775076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41785708 (or 41785706 counting only the distinct ones).

The product of its (nonzero) digits is 120022560, while the sum is 67.

The spelling of 21939083775076 in words is "twenty-one trillion, nine hundred thirty-nine billion, eighty-three million, seven hundred seventy-five thousand, seventy-six".