10644526431 has 48 divisors (see below), whose sum is σ = 20002844160. Its totient is φ = 5289197760.

The previous prime is 10644526379. The next prime is 10644526447. The reversal of 10644526431 is 13462544601.

10644526431 is a `hidden beast` number, since 1 + 0 + 6 + 4 + 4 + 5 + 2 + 643 + 1 = 666.

It is not a de Polignac number, because 10644526431 - 2¹⁰ = 10644525407 is a prime.

It is a super-2 number, since 2×10644526431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10644526331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 317976 + ... + 349853.

It is an arithmetic number, because the mean of its divisors is an integer number (416725920).

Almost surely, 2^10644526431 is an apocalyptic number.

10644526431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10644526431 is a deficient number, since it is larger than the sum of its proper divisors (9358317729).

10644526431 is a wasteful number, since it uses less digits than its factorization.

10644526431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667876 (or 667873 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 10644526431 in words is "ten billion, six hundred forty-four million, five hundred twenty-six thousand, four hundred thirty-one".