74142220680 has 96 divisors (see below), whose sum is σ = 262867887360. Its totient is φ = 17973870720.

The previous prime is 74142220643. The next prime is 74142220681. The reversal of 74142220680 is 8602224147.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (74142220681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9357432 + ... + 9365351.

It is an arithmetic number, because the mean of its divisors is an integer number (2738207160).

Almost surely, 2^74142220680 is an apocalyptic number.

It is an amenable number.

74142220680 is an abundant number, since it is smaller than the sum of its proper divisors (188725666680).

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

74142220680 is a wasteful number, since it uses less digits than its factorization.

74142220680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18722811 (or 18722804 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The spelling of 74142220680 in words is "seventy-four billion, one hundred forty-two million, two hundred twenty thousand, six hundred eighty".