74327665599 has 24 divisors (see below), whose sum is σ = 120287857872. Its totient is φ = 43829579520.

The previous prime is 74327665597. The next prime is 74327665603. The reversal of 74327665599 is 99556672347.

74327665599 is a `hidden beast` number, since 7 + 4 + 3 + 2 + 76 + 6 + 559 + 9 = 666.

It is not a de Polignac number, because 74327665599 - 2¹ = 74327665597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74327665597) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10142074 + ... + 10149399.

It is an arithmetic number, because the mean of its divisors is an integer number (5011994078).

Almost surely, 2^74327665599 is an apocalyptic number.

74327665599 is a deficient number, since it is larger than the sum of its proper divisors (45960192273).

74327665599 is a wasteful number, since it uses less digits than its factorization.

74327665599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20291527 (or 20291524 counting only the distinct ones).

The product of its digits is 85730400, while the sum is 63.

The spelling of 74327665599 in words is "seventy-four billion, three hundred twenty-seven million, six hundred sixty-five thousand, five hundred ninety-nine".