74548679813 has 16 divisors (see below), whose sum is σ = 81018685440. Its totient is φ = 68334159600.

The previous prime is 74548679801. The next prime is 74548679819. The reversal of 74548679813 is 31897684547.

It is a cyclic number.

It is not a de Polignac number, because 74548679813 - 2⁴ = 74548679797 is a prime.

It is a super-2 number, since 2×74548679813² (a number of 23 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 (74548679819) 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, 4932398 + ... + 4947488.

It is an arithmetic number, because the mean of its divisors is an integer number (5063667840).

Almost surely, 2^74548679813 is an apocalyptic number.

It is an amenable number.

74548679813 is a deficient number, since it is larger than the sum of its proper divisors (6470005627).

74548679813 is a wasteful number, since it uses less digits than its factorization.

74548679813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23528.

The product of its digits is 40642560, while the sum is 62.

The spelling of 74548679813 in words is "seventy-four billion, five hundred forty-eight million, six hundred seventy-nine thousand, eight hundred thirteen".