13431373872 has 160 divisors (see below), whose sum is σ = 42100019712. Its totient is φ = 3602092032.

The previous prime is 13431373853. The next prime is 13431373903. The reversal of 13431373872 is 27837313431.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2264703 + ... + 2270625.

Almost surely, 2^13431373872 is an apocalyptic number.

13431373872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13431373872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21050009856).

13431373872 is an abundant number, since it is smaller than the sum of its proper divisors (28668645840).

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

13431373872 is a wasteful number, since it uses less digits than its factorization.

13431373872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6355 (or 6349 counting only the distinct ones).

The product of its digits is 254016, while the sum is 42.

The spelling of 13431373872 in words is "thirteen billion, four hundred thirty-one million, three hundred seventy-three thousand, eight hundred seventy-two".