13881106572 has 12 divisors (see below), whose sum is σ = 32389248696. Its totient is φ = 4627035520.

The previous prime is 13881106559. The next prime is 13881106573. The reversal of 13881106572 is 27560118831.

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

It is not an unprimeable number, because it can be changed into a prime (13881106573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578379429 + ... + 578379452.

It is an arithmetic number, because the mean of its divisors is an integer number (2699104058).

Almost surely, 2^13881106572 is an apocalyptic number.

13881106572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13881106572 is an abundant number, since it is smaller than the sum of its proper divisors (18508142124).

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

13881106572 is a wasteful number, since it uses less digits than its factorization.

13881106572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156758888 (or 1156758886 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The spelling of 13881106572 in words is "thirteen billion, eight hundred eighty-one million, one hundred six thousand, five hundred seventy-two".