10644203254623 has 16 divisors (see below), whose sum is σ = 14246706270720. Its totient is φ = 7068919660704.

The previous prime is 10644203254603. The next prime is 10644203254637. The reversal of 10644203254623 is 32645230244601.

It is a happy number.

It is not a de Polignac number, because 10644203254623 - 2²⁶ = 10644136145759 is a prime.

It is a super-2 number, since 2×10644203254623² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10644203254603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25461198 + ... + 25875876.

It is an arithmetic number, because the mean of its divisors is an integer number (890419141920).

Almost surely, 2^{10644203254623} is an apocalyptic number.

10644203254623 is a deficient number, since it is larger than the sum of its proper divisors (3602503016097).

10644203254623 is a wasteful number, since it uses less digits than its factorization.

10644203254623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447478.

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 10644203254623 in words is "ten trillion, six hundred forty-four billion, two hundred three million, two hundred fifty-four thousand, six hundred twenty-three".