18780508676 has 6 divisors (see below), whose sum is σ = 32865890190. Its totient is φ = 9390254336.

The previous prime is 18780508661. The next prime is 18780508693. The reversal of 18780508676 is 67680508781.

It can be written as a sum of positive squares in only one way, i.e., 18028432900 + 752075776 = 134270^2 + 27424^2 .

It is a super-2 number, since 2×18780508676² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2347563581 + ... + 2347563588.

It is an arithmetic number, because the mean of its divisors is an integer number (5477648365).

Almost surely, 2^18780508676 is an apocalyptic number.

It is an amenable number.

18780508676 is a deficient number, since it is larger than the sum of its proper divisors (14085381514).

18780508676 is a wasteful number, since it uses less digits than its factorization.

18780508676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4695127173 (or 4695127171 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 56.

The spelling of 18780508676 in words is "eighteen billion, seven hundred eighty million, five hundred eight thousand, six hundred seventy-six".