74968714693 has 4 divisors (see below), whose sum is σ = 74981898220. Its totient is φ = 74955531168.

The previous prime is 74968714663. The next prime is 74968714721. The reversal of 74968714693 is 39641786947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39641786947 = 7 ⋅5663112421.

It can be written as a sum of positive squares in 2 ways, for example, as 49162862529 + 25805852164 = 221727^2 + 160642^2 .

It is a cyclic number.

It is not a de Polignac number, because 74968714693 - 2¹⁷ = 74968583621 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 (74968714633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6583230 + ... + 6594607.

It is an arithmetic number, because the mean of its divisors is an integer number (18745474555).

Almost surely, 2^74968714693 is an apocalyptic number.

It is an amenable number.

74968714693 is a deficient number, since it is larger than the sum of its proper divisors (13183527).

74968714693 is a wasteful number, since it uses less digits than its factorization.

74968714693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13183526.

The product of its digits is 54867456, while the sum is 64.

The spelling of 74968714693 in words is "seventy-four billion, nine hundred sixty-eight million, seven hundred fourteen thousand, six hundred ninety-three".