13431543672 has 32 divisors (see below), whose sum is σ = 33604243200. Its totient is φ = 4473796704.

The previous prime is 13431543661. The next prime is 13431543689. The reversal of 13431543672 is 27634513431.

It is a self number, because there is not a number n which added to its sum of digits gives 13431543672.

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, 179022 + ... + 242717.

It is an arithmetic number, because the mean of its divisors is an integer number (1050132600).

Almost surely, 2^13431543672 is an apocalyptic number.

13431543672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13431543672 is an abundant number, since it is smaller than the sum of its proper divisors (20172699528).

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

13431543672 is a wasteful number, since it uses less digits than its factorization.

13431543672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423075 (or 423071 counting only the distinct ones).

The product of its digits is 181440, while the sum is 39.

The spelling of 13431543672 in words is "thirteen billion, four hundred thirty-one million, five hundred forty-three thousand, six hundred seventy-two".