921402875264 has 16 divisors (see below), whose sum is σ = 1835607290820. Its totient is φ = 460701437568.

The previous prime is 921402875243. The next prime is 921402875269. The reversal of 921402875264 is 462578204129.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (921402875269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3599229854 + ... + 3599230109.

Almost surely, 2^921402875264 is an apocalyptic number.

It is an amenable number.

921402875264 is a deficient number, since it is larger than the sum of its proper divisors (914204415556).

921402875264 is an equidigital number, since it uses as much as digits as its factorization.

921402875264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7198459977 (or 7198459965 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 921402875264 in words is "nine hundred twenty-one billion, four hundred two million, eight hundred seventy-five thousand, two hundred sixty-four".