21359992529757 has 32 divisors (see below), whose sum is σ = 33359128704000. Its totient is φ = 12151940236464.

The previous prime is 21359992529749. The next prime is 21359992529767. The reversal of 21359992529757 is 75792529995312.

It is not a de Polignac number, because 21359992529757 - 2³ = 21359992529749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21359992529767) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45488907 + ... + 45956072.

It is an arithmetic number, because the mean of its divisors is an integer number (1042472772000).

Almost surely, 2^{21359992529757} is an apocalyptic number.

It is an amenable number.

21359992529757 is a deficient number, since it is larger than the sum of its proper divisors (11999136174243).

21359992529757 is an equidigital number, since it uses as much as digits as its factorization.

21359992529757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91445230 (or 91445216 counting only the distinct ones).

The product of its digits is 964467000, while the sum is 75.

The spelling of 21359992529757 in words is "twenty-one trillion, three hundred fifty-nine billion, nine hundred ninety-two million, five hundred twenty-nine thousand, seven hundred fifty-seven".