18668676274 has 16 divisors (see below), whose sum is σ = 28052533080. Its totient is φ = 9317848320.

The previous prime is 18668676263. The next prime is 18668676283. The reversal of 18668676274 is 47267686681.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7955391249 + 10713285025 = 89193^2 + 103505^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 3378634 + ... + 3384154.

Almost surely, 2^18668676274 is an apocalyptic number.

18668676274 is a deficient number, since it is larger than the sum of its proper divisors (9383856806).

18668676274 is a wasteful number, since it uses less digits than its factorization.

18668676274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8205.

The product of its digits is 32514048, while the sum is 61.

The spelling of 18668676274 in words is "eighteen billion, six hundred sixty-eight million, six hundred seventy-six thousand, two hundred seventy-four".