13872123372 has 12 divisors (see below), whose sum is σ = 32368287896. Its totient is φ = 4624041120.

The previous prime is 13872123329. The next prime is 13872123389. The reversal of 13872123372 is 27332127831.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 13872123372.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578005129 + ... + 578005152.

Almost surely, 2^13872123372 is an apocalyptic number.

13872123372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13872123372 is an abundant number, since it is smaller than the sum of its proper divisors (18496164524).

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

13872123372 is a wasteful number, since it uses less digits than its factorization.

13872123372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156010288 (or 1156010286 counting only the distinct ones).

The product of its digits is 84672, while the sum is 39.

The spelling of 13872123372 in words is "thirteen billion, eight hundred seventy-two million, one hundred twenty-three thousand, three hundred seventy-two".