13861782872 has 48 divisors (see below), whose sum is σ = 30253552560. Its totient is φ = 5936970816.

The previous prime is 13861782871. The next prime is 13861782917. The reversal of 13861782872 is 27828716831.

It is a hoax number, since the sum of its digits (53) 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 (13861782871) 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, 653213 + ... + 674099.

It is an arithmetic number, because the mean of its divisors is an integer number (630282345).

Almost surely, 2^13861782872 is an apocalyptic number.

It is an amenable number.

13861782872 is an abundant number, since it is smaller than the sum of its proper divisors (16391769688).

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

13861782872 is a wasteful number, since it uses less digits than its factorization.

13861782872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22600 (or 22589 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 53.

The spelling of 13861782872 in words is "thirteen billion, eight hundred sixty-one million, seven hundred eighty-two thousand, eight hundred seventy-two".