10638564375 has 20 divisors (see below), whose sum is σ = 17725269848. Its totient is φ = 5673900000.

The previous prime is 10638564347. The next prime is 10638564383. The reversal of 10638564375 is 57346583601.

It is not a de Polignac number, because 10638564375 - 2³³ = 2048629783 is a prime.

It is a super-2 number, since 2×10638564375² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2835076 + ... + 2838825.

Almost surely, 2^10638564375 is an apocalyptic number.

10638564375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10638564375 is a deficient number, since it is larger than the sum of its proper divisors (7086705473).

10638564375 is an frugal number, since it uses more digits than its factorization.

10638564375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5673924 (or 5673909 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 10638564375 in words is "ten billion, six hundred thirty-eight million, five hundred sixty-four thousand, three hundred seventy-five".