74775944957747 has 8 divisors (see below), whose sum is σ = 81588646640640. Its totient is φ = 67965724692360.

The previous prime is 74775944957663. The next prime is 74775944957797.

74775944957747 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 74775944957747 - 2²⁸ = 74775676522291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74775944957797) 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 7 ways as a sum of consecutive naturals, for example, 620291363 + ... + 620411900.

It is an arithmetic number, because the mean of its divisors is an integer number (10198580830080).

Almost surely, 2^{74775944957747} is an apocalyptic number.

74775944957747 is a deficient number, since it is larger than the sum of its proper divisors (6812701682893).

74775944957747 is a wasteful number, since it uses less digits than its factorization.

74775944957747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240708753.

The product of its digits is 60989241600, while the sum is 86.

The spelling of 74775944957747 in words is "seventy-four trillion, seven hundred seventy-five billion, nine hundred forty-four million, nine hundred fifty-seven thousand, seven hundred forty-seven".