18036674577 has 12 divisors (see below), whose sum is σ = 26102986884. Its totient is φ = 12001367040.

The previous prime is 18036674573. The next prime is 18036674599. The reversal of 18036674577 is 77547663081.

18036674577 is a `hidden beast` number, since 1 + 8 + 0 + 3 + 6 + 67 + 4 + 577 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2257295121 + 15779379456 = 47511^2 + 125616^2 .

It is not a de Polignac number, because 18036674577 - 2² = 18036674573 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18036674573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1918608 + ... + 1927985.

It is an arithmetic number, because the mean of its divisors is an integer number (2175248907).

Almost surely, 2^18036674577 is an apocalyptic number.

It is an amenable number.

18036674577 is a deficient number, since it is larger than the sum of its proper divisors (8066312307).

18036674577 is a wasteful number, since it uses less digits than its factorization.

18036674577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847120 (or 3847117 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 54.

The spelling of 18036674577 in words is "eighteen billion, thirty-six million, six hundred seventy-four thousand, five hundred seventy-seven".