13623972639 has 8 divisors (see below), whose sum is σ = 18587745792. Its totient is φ = 8871423960.

The previous prime is 13623972631. The next prime is 13623972647. The reversal of 13623972639 is 93627932631.

It is a happy number.

13623972639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13623972631) and next prime (13623972647).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13623972639 - 2³ = 13623972631 is a prime.

It is a super-2 number, since 2×13623972639² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13623972591 and 13623972600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13623972631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52805967 + ... + 52806224.

It is an arithmetic number, because the mean of its divisors is an integer number (2323468224).

Almost surely, 2^13623972639 is an apocalyptic number.

13623972639 is a deficient number, since it is larger than the sum of its proper divisors (4963773153).

13623972639 is a wasteful number, since it uses less digits than its factorization.

13623972639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105612237.

The product of its digits is 2204496, while the sum is 51.

The spelling of 13623972639 in words is "thirteen billion, six hundred twenty-three million, nine hundred seventy-two thousand, six hundred thirty-nine".