13643652975 has 48 divisors (see below), whose sum is σ = 22755686400. Its totient is φ = 7212958720.

The previous prime is 13643652961. The next prime is 13643653027. The reversal of 13643652975 is 57925634631.

It is a happy number.

It is not a de Polignac number, because 13643652975 - 2⁴ = 13643652959 is a prime.

It is a super-2 number, since 2×13643652975² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4737586 + ... + 4740464.

It is an arithmetic number, because the mean of its divisors is an integer number (474076800).

Almost surely, 2^13643652975 is an apocalyptic number.

13643652975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13643652975 is a deficient number, since it is larger than the sum of its proper divisors (9112033425).

13643652975 is a wasteful number, since it uses less digits than its factorization.

13643652975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3424 (or 3419 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 51.

The spelling of 13643652975 in words is "thirteen billion, six hundred forty-three million, six hundred fifty-two thousand, nine hundred seventy-five".