38565142139 has 4 divisors (see below), whose sum is σ = 38571984360. Its totient is φ = 38558299920.

The previous prime is 38565142129. The next prime is 38565142151. The reversal of 38565142139 is 93124156583.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38565142139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38565142093 and 38565142102.

It is not an unprimeable number, because it can be changed into a prime (38565142129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3412649 + ... + 3423930.

It is an arithmetic number, because the mean of its divisors is an integer number (9642996090).

Almost surely, 2^38565142139 is an apocalyptic number.

38565142139 is a deficient number, since it is larger than the sum of its proper divisors (6842221).

38565142139 is an equidigital number, since it uses as much as digits as its factorization.

38565142139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6842220.

The product of its digits is 777600, while the sum is 47.

The spelling of 38565142139 in words is "thirty-eight billion, five hundred sixty-five million, one hundred forty-two thousand, one hundred thirty-nine".