18464368607 has 4 divisors (see below), whose sum is σ = 18510414816. Its totient is φ = 18418322400.

The previous prime is 18464368591. The next prime is 18464368633. The reversal of 18464368607 is 70686346481.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18464368607 - 2⁴ = 18464368591 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 (18464308607) 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, 23022503 + ... + 23023304.

It is an arithmetic number, because the mean of its divisors is an integer number (4627603704).

Almost surely, 2^18464368607 is an apocalyptic number.

18464368607 is a deficient number, since it is larger than the sum of its proper divisors (46046209).

18464368607 is an equidigital number, since it uses as much as digits as its factorization.

18464368607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46046208.

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 18464368607 in words is "eighteen billion, four hundred sixty-four million, three hundred sixty-eight thousand, six hundred seven".