74439180779 has 16 divisors (see below), whose sum is σ = 78019768320. Its totient is φ = 70964998560.

The previous prime is 74439180773. The next prime is 74439180791. The reversal of 74439180779 is 97708193447.

It is a cyclic number.

It is not a de Polignac number, because 74439180779 - 2³² = 70144213483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74439180773) 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, 169262 + ... + 421340.

It is an arithmetic number, because the mean of its divisors is an integer number (4876235520).

Almost surely, 2^74439180779 is an apocalyptic number.

74439180779 is a deficient number, since it is larger than the sum of its proper divisors (3580587541).

74439180779 is a wasteful number, since it uses less digits than its factorization.

74439180779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252290.

The product of its (nonzero) digits is 10668672, while the sum is 59.

The spelling of 74439180779 in words is "seventy-four billion, four hundred thirty-nine million, one hundred eighty thousand, seven hundred seventy-nine".