74876791387 has 16 divisors (see below), whose sum is σ = 79818089472. Its totient is φ = 70076871040.

The previous prime is 74876791343. The next prime is 74876791391. The reversal of 74876791387 is 78319767847.

It is a de Polignac number, because none of the positive numbers 2^k-74876791387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74876791337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4680312 + ... + 4696282.

It is an arithmetic number, because the mean of its divisors is an integer number (4988630592).

Almost surely, 2^74876791387 is an apocalyptic number.

74876791387 is a deficient number, since it is larger than the sum of its proper divisors (4941298085).

74876791387 is a wasteful number, since it uses less digits than its factorization.

74876791387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20378.

The product of its digits is 99574272, while the sum is 67.

The spelling of 74876791387 in words is "seventy-four billion, eight hundred seventy-six million, seven hundred ninety-one thousand, three hundred eighty-seven".