37986868979 has 4 divisors (see below), whose sum is σ = 38018872584. Its totient is φ = 37954865376.

The previous prime is 37986868937. The next prime is 37986868987. The reversal of 37986868979 is 97986868973.

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

It is a cyclic number.

It is not a de Polignac number, because 37986868979 - 2⁸ = 37986868723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37986868079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16000022 + ... + 16002395.

It is an arithmetic number, because the mean of its divisors is an integer number (9504718146).

Almost surely, 2^37986868979 is an apocalyptic number.

37986868979 is a deficient number, since it is larger than the sum of its proper divisors (32003605).

37986868979 is a wasteful number, since it uses less digits than its factorization.

37986868979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32003604.

The product of its digits is 1975228416, while the sum is 80.

The spelling of 37986868979 in words is "thirty-seven billion, nine hundred eighty-six million, eight hundred sixty-eight thousand, nine hundred seventy-nine".