74839265279 has 8 divisors (see below), whose sum is σ = 75509249760. Its totient is φ = 74169415936.

The previous prime is 74839265213. The next prime is 74839265297. The reversal of 74839265279 is 97256293847.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74839265279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74839265299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1319987 + ... + 1375515.

It is an arithmetic number, because the mean of its divisors is an integer number (9438656220).

Almost surely, 2^74839265279 is an apocalyptic number.

74839265279 is a deficient number, since it is larger than the sum of its proper divisors (669984481).

74839265279 is a wasteful number, since it uses less digits than its factorization.

74839265279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67569.

The product of its digits is 45722880, while the sum is 62.

The spelling of 74839265279 in words is "seventy-four billion, eight hundred thirty-nine million, two hundred sixty-five thousand, two hundred seventy-nine".