18586493364 has 12 divisors (see below), whose sum is σ = 43368484544. Its totient is φ = 6195497784.

The previous prime is 18586493351. The next prime is 18586493369. The reversal of 18586493364 is 46339468581.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18586493369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 774437212 + ... + 774437235.

Almost surely, 2^18586493364 is an apocalyptic number.

It is an amenable number.

18586493364 is an abundant number, since it is smaller than the sum of its proper divisors (24781991180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18586493364 is a wasteful number, since it uses less digits than its factorization.

18586493364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548874454 (or 1548874452 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 57.

The spelling of 18586493364 in words is "eighteen billion, five hundred eighty-six million, four hundred ninety-three thousand, three hundred sixty-four".