13857427938 has 32 divisors (see below), whose sum is σ = 28464955200. Its totient is φ = 4494926016.

The previous prime is 13857427931. The next prime is 13857427949. The reversal of 13857427938 is 83972475831.

It is not an unprimeable number, because it can be changed into a prime (13857427931) 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, 30433 + ... + 169236.

It is an arithmetic number, because the mean of its divisors is an integer number (889529850).

Almost surely, 2^13857427938 is an apocalyptic number.

13857427938 is an abundant number, since it is smaller than the sum of its proper divisors (14607527262).

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

13857427938 is a wasteful number, since it uses less digits than its factorization.

13857427938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199986.

The product of its digits is 10160640, while the sum is 57.

The spelling of 13857427938 in words is "thirteen billion, eight hundred fifty-seven million, four hundred twenty-seven thousand, nine hundred thirty-eight".