2180383679764 has 6 divisors (see below), whose sum is σ = 3815671439594. Its totient is φ = 1090191839880.

The previous prime is 2180383679731. The next prime is 2180383679767. The reversal of 2180383679764 is 4679763830812.

It can be written as a sum of positive squares in only one way, i.e., 1965744202500 + 214639477264 = 1402050^2 + 463292^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2180383679696 and 2180383679705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180383679767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272547959967 + ... + 272547959974.

Almost surely, 2^{2180383679764} is an apocalyptic number.

It is an amenable number.

2180383679764 is a deficient number, since it is larger than the sum of its proper divisors (1635287759830).

2180383679764 is a wasteful number, since it uses less digits than its factorization.

2180383679764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545095919945 (or 545095919943 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 64.

The spelling of 2180383679764 in words is "two trillion, one hundred eighty billion, three hundred eighty-three million, six hundred seventy-nine thousand, seven hundred sixty-four".