180389390612 has 6 divisors (see below), whose sum is σ = 315681433578. Its totient is φ = 90194695304.

The previous prime is 180389390579. The next prime is 180389390617. The reversal of 180389390612 is 216093983081.

It can be written as a sum of positive squares in only one way, i.e., 143304645136 + 37084745476 = 378556^2 + 192574^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180389390617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22548673823 + ... + 22548673830.

It is an arithmetic number, because the mean of its divisors is an integer number (52613572263).

Almost surely, 2^180389390612 is an apocalyptic number.

It is an amenable number.

180389390612 is a deficient number, since it is larger than the sum of its proper divisors (135292042966).

180389390612 is a wasteful number, since it uses less digits than its factorization.

180389390612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45097347657 (or 45097347655 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 180389390612 in words is "one hundred eighty billion, three hundred eighty-nine million, three hundred ninety thousand, six hundred twelve".