180512788040 has 128 divisors (see below), whose sum is σ = 440515152000. Its totient is φ = 66177312768.

The previous prime is 180512788009. The next prime is 180512788069. The reversal of 180512788040 is 40887215081.

It is a junction number, because it is equal to n+sod(n) for n = 180512787982 and 180512788000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48276491 + ... + 48280229.

It is an arithmetic number, because the mean of its divisors is an integer number (3441524625).

Almost surely, 2^180512788040 is an apocalyptic number.

180512788040 is a gapful number since it is divisible by the number (10) 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 180512788040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220257576000).

180512788040 is an abundant number, since it is smaller than the sum of its proper divisors (260002363960).

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

180512788040 is a wasteful number, since it uses less digits than its factorization.

180512788040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4399 (or 4395 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 44.

The spelling of 180512788040 in words is "one hundred eighty billion, five hundred twelve million, seven hundred eighty-eight thousand, forty".