74889711880 has 16 divisors (see below), whose sum is σ = 168501851820. Its totient is φ = 29955884736.

The previous prime is 74889711863. The next prime is 74889711887. The reversal of 74889711880 is 8811798847.

It can be written as a sum of positive squares in 2 ways, for example, as 70880542756 + 4009169124 = 266234^2 + 63318^2 .

It is not an unprimeable number, because it can be changed into a prime (74889711887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 936121359 + ... + 936121438.

Almost surely, 2^74889711880 is an apocalyptic number.

It is an amenable number.

74889711880 is an abundant number, since it is smaller than the sum of its proper divisors (93612139940).

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

74889711880 is a wasteful number, since it uses less digits than its factorization.

74889711880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872242808 (or 1872242804 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 61.

It can be divided in two parts, 74889 and 711880, that added together give a square (786769 = 887²).

The spelling of 74889711880 in words is "seventy-four billion, eight hundred eighty-nine million, seven hundred eleven thousand, eight hundred eighty".