13871560542 has 32 divisors (see below), whose sum is σ = 32381033472. Its totient is φ = 3878976864.

The previous prime is 13871560541. The next prime is 13871560553. The reversal of 13871560542 is 24506517831.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 13871560494 and 13871560503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13871560541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3511593 + ... + 3515540.

It is an arithmetic number, because the mean of its divisors is an integer number (1011907296).

Almost surely, 2^13871560542 is an apocalyptic number.

13871560542 is an abundant number, since it is smaller than the sum of its proper divisors (18509472930).

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

13871560542 is a wasteful number, since it uses less digits than its factorization.

13871560542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7027192.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 13871560542 in words is "thirteen billion, eight hundred seventy-one million, five hundred sixty thousand, five hundred forty-two".