74702715720 has 128 divisors (see below), whose sum is σ = 237761740800. Its totient is φ = 18723591936.

The previous prime is 74702715707. The next prime is 74702715727. The reversal of 74702715720 is 2751720747.

It is not an unprimeable number, because it can be changed into a prime (74702715727) 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, 160567 + ... + 418553.

It is an arithmetic number, because the mean of its divisors is an integer number (1857513600).

Almost surely, 2^74702715720 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 74702715720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118880870400).

74702715720 is an abundant number, since it is smaller than the sum of its proper divisors (163059025080).

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

74702715720 is a wasteful number, since it uses less digits than its factorization.

74702715720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258147 (or 258143 counting only the distinct ones).

The product of its (nonzero) digits is 192080, while the sum is 42.

The spelling of 74702715720 in words is "seventy-four billion, seven hundred two million, seven hundred fifteen thousand, seven hundred twenty".