180979577370 has 80 divisors (see below), whose sum is σ = 486779558760. Its totient is φ = 48246782976.

The previous prime is 180979577357. The next prime is 180979577431. The reversal of 180979577370 is 73775979081.

It can be written as a sum of positive squares in 4 ways, for example, as 139347663849 + 41631913521 = 373293^2 + 204039^2 .

It is a super-2 number, since 2×180979577370² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 180979577298 and 180979577307.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2826834 + ... + 2890146.

Almost surely, 2^180979577370 is an apocalyptic number.

180979577370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180979577370 is an abundant number, since it is smaller than the sum of its proper divisors (305799981390).

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

180979577370 is a wasteful number, since it uses less digits than its factorization.

180979577370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66861 (or 66852 counting only the distinct ones).

The product of its (nonzero) digits is 23337720, while the sum is 63.

The spelling of 180979577370 in words is "one hundred eighty billion, nine hundred seventy-nine million, five hundred seventy-seven thousand, three hundred seventy".