74606899860647 has 16 divisors (see below), whose sum is σ = 93019301836800. Its totient is φ = 58133429641440.

The previous prime is 74606899860637. The next prime is 74606899860667.

74606899860647 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 74606899860647 - 2⁴ = 74606899860631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74606899860617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12659447 + ... + 17591912.

It is an arithmetic number, because the mean of its divisors is an integer number (5813706364800).

Almost surely, 2^{74606899860647} is an apocalyptic number.

74606899860647 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

74606899860647 is a deficient number, since it is larger than the sum of its proper divisors (18412401976153).

74606899860647 is a wasteful number, since it uses less digits than its factorization.

74606899860647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30283406.

The product of its (nonzero) digits is 5267275776, while the sum is 80.

The spelling of 74606899860647 in words is "seventy-four trillion, six hundred six billion, eight hundred ninety-nine million, eight hundred sixty thousand, six hundred forty-seven".