18636064029 has 12 divisors (see below), whose sum is σ = 29365919232. Its totient is φ = 11294584200.

The previous prime is 18636064009. The next prime is 18636064079. The reversal of 18636064029 is 92046063681.

18636064029 is a `hidden beast` number, since 1 + 8 + 636 + 0 + 6 + 4 + 0 + 2 + 9 = 666.

It is not a de Polignac number, because 18636064029 - 2⁹ = 18636063517 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18636064009) 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, 94121437 + ... + 94121634.

It is an arithmetic number, because the mean of its divisors is an integer number (2447159936).

Almost surely, 2^18636064029 is an apocalyptic number.

It is an amenable number.

18636064029 is a deficient number, since it is larger than the sum of its proper divisors (10729855203).

18636064029 is a wasteful number, since it uses less digits than its factorization.

18636064029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188243088 (or 188243085 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 18636064029 in words is "eighteen billion, six hundred thirty-six million, sixty-four thousand, twenty-nine".