74789643605 has 16 divisors (see below), whose sum is σ = 93657199104. Its totient is φ = 57225717120.

The previous prime is 74789643587. The next prime is 74789643623. The reversal of 74789643605 is 50634698747.

It is an interprime number because it is at equal distance from previous prime (74789643587) and next prime (74789643623).

It is not a de Polignac number, because 74789643605 - 2⁸ = 74789643349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2289185 + ... + 2321625.

It is an arithmetic number, because the mean of its divisors is an integer number (5853574944).

Almost surely, 2^74789643605 is an apocalyptic number.

It is an amenable number.

74789643605 is a deficient number, since it is larger than the sum of its proper divisors (18867555499).

74789643605 is a wasteful number, since it uses less digits than its factorization.

74789643605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52516.

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 74789643605 in words is "seventy-four billion, seven hundred eighty-nine million, six hundred forty-three thousand, six hundred five".