74164646147 has 16 divisors (see below), whose sum is σ = 75733574400. Its totient is φ = 72617532000.

The previous prime is 74164646089. The next prime is 74164646173.

74164646147 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 74164646147 - 2¹⁰ = 74164645123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74164646095 and 74164646104.

It is not an unprimeable number, because it can be changed into a prime (74164646177) 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, 2934788 + ... + 2959950.

It is an arithmetic number, because the mean of its divisors is an integer number (4733348400).

Almost surely, 2^74164646147 is an apocalyptic number.

74164646147 is a deficient number, since it is larger than the sum of its proper divisors (1568928253).

74164646147 is a wasteful number, since it uses less digits than its factorization.

74164646147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25594.

The product of its digits is 2709504, while the sum is 50.

The spelling of 74164646147 in words is "seventy-four billion, one hundred sixty-four million, six hundred forty-six thousand, one hundred forty-seven".