13642726872 has 32 divisors (see below), whose sum is σ = 34283548080. Its totient is φ = 4524011520.

The previous prime is 13642726861. The next prime is 13642726907. The reversal of 13642726872 is 27862724631.

It is a super-2 number, since 2×13642726872² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1468029 + ... + 1477292.

Almost surely, 2^13642726872 is an apocalyptic number.

13642726872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13642726872 is an abundant number, since it is smaller than the sum of its proper divisors (20640821208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13642726872 is a wasteful number, since it uses less digits than its factorization.

13642726872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945523 (or 2945519 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 48.

The spelling of 13642726872 in words is "thirteen billion, six hundred forty-two million, seven hundred twenty-six thousand, eight hundred seventy-two".