13671422928 has 60 divisors (see below), whose sum is σ = 38982923460. Its totient is φ = 4471154688.

The previous prime is 13671422927. The next prime is 13671422953. The reversal of 13671422928 is 82922417631.

13671422928 is a `hidden beast` number, since 136 + 7 + 1 + 422 + 92 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5031348624 + 8640074304 = 70932^2 + 92952^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13671422927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 888033 + ... + 903296.

It is an arithmetic number, because the mean of its divisors is an integer number (649715391).

Almost surely, 2^13671422928 is an apocalyptic number.

13671422928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13671422928 is an abundant number, since it is smaller than the sum of its proper divisors (25311500532).

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

13671422928 is a wasteful number, since it uses less digits than its factorization.

13671422928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791396 (or 1791387 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The spelling of 13671422928 in words is "thirteen billion, six hundred seventy-one million, four hundred twenty-two thousand, nine hundred twenty-eight".