10644275923 has 4 divisors (see below), whose sum is σ = 10647349560. Its totient is φ = 10641202288.

The previous prime is 10644275897. The next prime is 10644275951. The reversal of 10644275923 is 32957244601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10644275923 is a prime.

It is a super-2 number, since 2×10644275923² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10644275923.

It is not an unprimeable number, because it can be changed into a prime (10644275023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1531618 + ... + 1538551.

It is an arithmetic number, because the mean of its divisors is an integer number (2661837390).

Almost surely, 2^10644275923 is an apocalyptic number.

10644275923 is a deficient number, since it is larger than the sum of its proper divisors (3073637).

10644275923 is an equidigital number, since it uses as much as digits as its factorization.

10644275923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073636.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 10644275923 in words is "ten billion, six hundred forty-four million, two hundred seventy-five thousand, nine hundred twenty-three".