18670336677 has 32 divisors (see below), whose sum is σ = 28805760000. Its totient is φ = 11936957760.

The previous prime is 18670336667. The next prime is 18670336679. The reversal of 18670336677 is 77663307681.

It is a happy number.

18670336677 is a `hidden beast` number, since 186 + 70 + 336 + 67 + 7 = 666.

It is not a de Polignac number, because 18670336677 - 2¹⁹ = 18669812389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18670336679) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36652 + ... + 196682.

It is an arithmetic number, because the mean of its divisors is an integer number (900180000).

Almost surely, 2^18670336677 is an apocalyptic number.

It is an amenable number.

18670336677 is a deficient number, since it is larger than the sum of its proper divisors (10135423323).

18670336677 is a wasteful number, since it uses less digits than its factorization.

18670336677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160218 (or 160212 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 54.

The spelling of 18670336677 in words is "eighteen billion, six hundred seventy million, three hundred thirty-six thousand, six hundred seventy-seven".