180285491940 has 24 divisors (see below), whose sum is σ = 504799377600. Its totient is φ = 48076131168.

The previous prime is 180285491933. The next prime is 180285491941. The reversal of 180285491940 is 49194582081.

It is not an unprimeable number, because it can be changed into a prime (180285491941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1502379040 + ... + 1502379159.

It is an arithmetic number, because the mean of its divisors is an integer number (21033307400).

Almost surely, 2^180285491940 is an apocalyptic number.

180285491940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180285491940 is an abundant number, since it is smaller than the sum of its proper divisors (324513885660).

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

180285491940 is a wasteful number, since it uses less digits than its factorization.

180285491940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004758211 (or 3004758209 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 51.

The spelling of 180285491940 in words is "one hundred eighty billion, two hundred eighty-five million, four hundred ninety-one thousand, nine hundred forty".