74779065092959 has 4 divisors (see below), whose sum is σ = 74780306278920. Its totient is φ = 74777823907000.

The previous prime is 74779065092917. The next prime is 74779065093013. The reversal of 74779065092959 is 95929056097747.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74779065092959 is a prime.

It is a super-2 number, since 2×74779065092959² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74779065012959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620502604 + ... + 620623105.

It is an arithmetic number, because the mean of its divisors is an integer number (18695076569730).

Almost surely, 2^{74779065092959} is an apocalyptic number.

74779065092959 is a deficient number, since it is larger than the sum of its proper divisors (1241185961).

74779065092959 is a wasteful number, since it uses less digits than its factorization.

74779065092959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241185960.

The product of its (nonzero) digits is 2700507600, while the sum is 79.

The spelling of 74779065092959 in words is "seventy-four trillion, seven hundred seventy-nine billion, sixty-five million, ninety-two thousand, nine hundred fifty-nine".