74867904399 has 32 divisors (see below), whose sum is σ = 105814374400. Its totient is φ = 46954598400.

The previous prime is 74867904389. The next prime is 74867904407. The reversal of 74867904399 is 99340976847.

It is a Cunningham number, because it is equal to 273620²-1.

It is not a de Polignac number, because 74867904399 - 2⁵ = 74867904367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74867904389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5191599 + ... + 5205999.

It is an arithmetic number, because the mean of its divisors is an integer number (3306699200).

Almost surely, 2^74867904399 is an apocalyptic number.

74867904399 is a deficient number, since it is larger than the sum of its proper divisors (30946470001).

74867904399 is a wasteful number, since it uses less digits than its factorization.

74867904399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15055.

The product of its (nonzero) digits is 82301184, while the sum is 66.

The spelling of 74867904399 in words is "seventy-four billion, eight hundred sixty-seven million, nine hundred four thousand, three hundred ninety-nine".