74007940680 has 160 divisors (see below), whose sum is σ = 249158800440. Its totient is φ = 19702932480.

The previous prime is 74007940621. The next prime is 74007940691. The reversal of 74007940680 is 8604970047.

It can be written as a sum of positive squares in 4 ways, for example, as 20782682244 + 53225258436 = 144162^2 + 230706^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1980570 + ... + 2017590.

Almost surely, 2^74007940680 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 74007940680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124579400220).

74007940680 is an abundant number, since it is smaller than the sum of its proper divisors (175150859760).

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

74007940680 is a wasteful number, since it uses less digits than its factorization.

74007940680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37661 (or 37648 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 74007940680 in words is "seventy-four billion, seven million, nine hundred forty thousand, six hundred eighty".