10821267264 has 56 divisors (see below), whose sum is σ = 29100666208. Its totient is φ = 3547952640.

The previous prime is 10821267221. The next prime is 10821267269. The reversal of 10821267264 is 46276212801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10821267269) 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, 450262 + ... + 473685.

Almost surely, 2^10821267264 is an apocalyptic number.

It is an amenable number.

10821267264 is an abundant number, since it is smaller than the sum of its proper divisors (18279398944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10821267264 is an equidigital number, since it uses as much as digits as its factorization.

10821267264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924023 (or 924013 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The spelling of 10821267264 in words is "ten billion, eight hundred twenty-one million, two hundred sixty-seven thousand, two hundred sixty-four".