180077868 has 72 divisors (see below), whose sum is σ = 471744000. Its totient is φ = 57882720.

The previous prime is 180077837. The next prime is 180077921. The reversal of 180077868 is 868770081.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119383 + ... + 120881.

It is an arithmetic number, because the mean of its divisors is an integer number (6552000).

Almost surely, 2^180077868 is an apocalyptic number.

180077868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180077868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235872000).

180077868 is an abundant number, since it is smaller than the sum of its proper divisors (291666132).

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

180077868 is a wasteful number, since it uses less digits than its factorization.

180077868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627 (or 1622 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The square root of 180077868 is about 13419.3095202399. The cubic root of 180077868 is about 564.7030240281.

The spelling of 180077868 in words is "one hundred eighty million, seventy-seven thousand, eight hundred sixty-eight".