74679732291 has 8 divisors (see below), whose sum is σ = 102264138064. Its totient is φ = 48440907360.

The previous prime is 74679732289. The next prime is 74679732311. The reversal of 74679732291 is 19223797647.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74679732291 - 2¹ = 74679732289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74679732271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336395080 + ... + 336395301.

It is an arithmetic number, because the mean of its divisors is an integer number (12783017258).

Almost surely, 2^74679732291 is an apocalyptic number.

74679732291 is a deficient number, since it is larger than the sum of its proper divisors (27584405773).

74679732291 is a wasteful number, since it uses less digits than its factorization.

74679732291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672790421.

The product of its digits is 8001504, while the sum is 57.

The spelling of 74679732291 in words is "seventy-four billion, six hundred seventy-nine million, seven hundred thirty-two thousand, two hundred ninety-one".