18357078464 has 28 divisors (see below), whose sum is σ = 36432820200. Its totient is φ = 9177155328.

The previous prime is 18357078433. The next prime is 18357078511. The reversal of 18357078464 is 46487075381.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505922 + ... + 540990.

It is an arithmetic number, because the mean of its divisors is an integer number (1301172150).

Almost surely, 2^18357078464 is an apocalyptic number.

It is an amenable number.

18357078464 is a deficient number, since it is larger than the sum of its proper divisors (18075741736).

18357078464 is an equidigital number, since it uses as much as digits as its factorization.

18357078464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43260 (or 43250 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 53.

The spelling of 18357078464 in words is "eighteen billion, three hundred fifty-seven million, seventy-eight thousand, four hundred sixty-four".