18564070213 has 16 divisors (see below), whose sum is σ = 21049161280. Its totient is φ = 16230409344.

The previous prime is 18564070211. The next prime is 18564070243. The reversal of 18564070213 is 31207046581.

It is a cyclic number.

It is not a de Polignac number, because 18564070213 - 2¹ = 18564070211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18564070211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1969570 + ... + 1978972.

It is an arithmetic number, because the mean of its divisors is an integer number (1315572580).

Almost surely, 2^18564070213 is an apocalyptic number.

18564070213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18564070213 is a deficient number, since it is larger than the sum of its proper divisors (2485091067).

18564070213 is a wasteful number, since it uses less digits than its factorization.

18564070213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17428.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 18564070213 in words is "eighteen billion, five hundred sixty-four million, seventy thousand, two hundred thirteen".