180815364713 has 16 divisors (see below), whose sum is σ = 188103762000. Its totient is φ = 173665389312.

The previous prime is 180815364703. The next prime is 180815364761. The reversal of 180815364713 is 317463518081.

It can be written as a sum of positive squares in 8 ways, for example, as 3247518169 + 177567846544 = 56987^2 + 421388^2 .

It is a cyclic number.

It is not a de Polignac number, because 180815364713 - 2⁶ = 180815364649 is a prime.

It is a super-2 number, since 2×180815364713² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180815364703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1001543 + ... + 1168211.

It is an arithmetic number, because the mean of its divisors is an integer number (11756485125).

Almost surely, 2^180815364713 is an apocalyptic number.

It is an amenable number.

180815364713 is a deficient number, since it is larger than the sum of its proper divisors (7288397287).

180815364713 is a wasteful number, since it uses less digits than its factorization.

180815364713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167084.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 180815364713 in words is "one hundred eighty billion, eight hundred fifteen million, three hundred sixty-four thousand, seven hundred thirteen".