74864226657 has 12 divisors (see below), whose sum is σ = 109718371280. Its totient is φ = 45372258360.

The previous prime is 74864226599. The next prime is 74864226691. The reversal of 74864226657 is 75662246847.

It is not a de Polignac number, because 74864226657 - 2⁸ = 74864226401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74864226597 and 74864226606.

It is not an unprimeable number, because it can be changed into a prime (74864226557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103118407 + ... + 103119132.

Almost surely, 2^74864226657 is an apocalyptic number.

It is an amenable number.

74864226657 is a deficient number, since it is larger than the sum of its proper divisors (34854144623).

74864226657 is a wasteful number, since it uses less digits than its factorization.

74864226657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206237564 (or 206237553 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 57.

The spelling of 74864226657 in words is "seventy-four billion, eight hundred sixty-four million, two hundred twenty-six thousand, six hundred fifty-seven".