74977394747 has 8 divisors (see below), whose sum is σ = 77403338112. Its totient is φ = 72551908800.

The previous prime is 74977394707. The next prime is 74977394819. The reversal of 74977394747 is 74749377947.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 74977394747 - 2⁶ = 74977394683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74977394707) 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, 235847 + ... + 453407.

It is an arithmetic number, because the mean of its divisors is an integer number (9675417264).

Almost surely, 2^74977394747 is an apocalyptic number.

74977394747 is a deficient number, since it is larger than the sum of its proper divisors (2425943365).

74977394747 is a wasteful number, since it uses less digits than its factorization.

74977394747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228709.

The product of its digits is 261382464, while the sum is 68.

The spelling of 74977394747 in words is "seventy-four billion, nine hundred seventy-seven million, three hundred ninety-four thousand, seven hundred forty-seven".