180475334840 has 32 divisors (see below), whose sum is σ = 406097783280. Its totient is φ = 72185106432.

The previous prime is 180475334759. The next prime is 180475334863. The reversal of 180475334840 is 48433574081.

It is a super-2 number, since 2×180475334840² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453752 + ... + 752888.

Almost surely, 2^180475334840 is an apocalyptic number.

180475334840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180475334840 is an abundant number, since it is smaller than the sum of its proper divisors (225622448440).

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

180475334840 is a wasteful number, since it uses less digits than its factorization.

180475334840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314231 (or 314227 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 180475334840 in words is "one hundred eighty billion, four hundred seventy-five million, three hundred thirty-four thousand, eight hundred forty".