37949940379 has 16 divisors (see below), whose sum is σ = 41873235712. Its totient is φ = 34172173728.

The previous prime is 37949940367. The next prime is 37949940389. The reversal of 37949940379 is 97304994973.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37949940379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 37949940379.

It is not an unprimeable number, because it can be changed into a prime (37949940319) 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, 396802 + ... + 483064.

It is an arithmetic number, because the mean of its divisors is an integer number (2617077232).

Almost surely, 2^37949940379 is an apocalyptic number.

37949940379 is a deficient number, since it is larger than the sum of its proper divisors (3923295333).

37949940379 is a wasteful number, since it uses less digits than its factorization.

37949940379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87106.

The product of its (nonzero) digits is 46294416, while the sum is 64.

The spelling of 37949940379 in words is "thirty-seven billion, nine hundred forty-nine million, nine hundred forty thousand, three hundred seventy-nine".