74397696399 has 40 divisors (see below), whose sum is σ = 119751516192. Its totient is φ = 45758260800.

The previous prime is 74397696361. The next prime is 74397696493. The reversal of 74397696399 is 99369679347.

74397696399 is a `hidden beast` number, since 7 + 439 + 76 + 96 + 39 + 9 = 666.

It is not a de Polignac number, because 74397696399 - 2⁷ = 74397696271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74397646399) 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 39 ways as a sum of consecutive naturals, for example, 2017174 + ... + 2053724.

Almost surely, 2^74397696399 is an apocalyptic number.

74397696399 is a deficient number, since it is larger than the sum of its proper divisors (45353819793).

74397696399 is a wasteful number, since it uses less digits than its factorization.

74397696399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38509 (or 38500 counting only the distinct ones).

The product of its digits is 416649744, while the sum is 72.

The spelling of 74397696399 in words is "seventy-four billion, three hundred ninety-seven million, six hundred ninety-six thousand, three hundred ninety-nine".