74113777668 has 96 divisors (see below), whose sum is σ = 199910430720. Its totient is φ = 20933003520.

The previous prime is 74113777667. The next prime is 74113777669. The reversal of 74113777668 is 86677731147.

It is an interprime number because it is at equal distance from previous prime (74113777667) and next prime (74113777669).

It is not an unprimeable number, because it can be changed into a prime (74113777663) 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, 2881248 + ... + 2906856.

It is an arithmetic number, because the mean of its divisors is an integer number (2082400320).

Almost surely, 2^74113777668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74113777668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99955215360).

74113777668 is an abundant number, since it is smaller than the sum of its proper divisors (125796653052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74113777668 is a wasteful number, since it uses less digits than its factorization.

74113777668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26017 (or 26015 counting only the distinct ones).

The product of its digits is 8297856, while the sum is 57.

The spelling of 74113777668 in words is "seventy-four billion, one hundred thirteen million, seven hundred seventy-seven thousand, six hundred sixty-eight".