74668794140 has 24 divisors (see below), whose sum is σ = 156903840240. Its totient is φ = 29848589568.

The previous prime is 74668794139. The next prime is 74668794163. The reversal of 74668794140 is 4149786647.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1150637 + ... + 1213796.

It is an arithmetic number, because the mean of its divisors is an integer number (6537660010).

Almost surely, 2^74668794140 is an apocalyptic number.

It is an amenable number.

74668794140 is an abundant number, since it is smaller than the sum of its proper divisors (82235046100).

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

74668794140 is a wasteful number, since it uses less digits than its factorization.

74668794140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366021 (or 2366019 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 74668794140 in words is "seventy-four billion, six hundred sixty-eight million, seven hundred ninety-four thousand, one hundred forty".