18314928155720 has 32 divisors (see below), whose sum is σ = 47095529544000. Its totient is φ = 6279403939008.

The previous prime is 18314928155707. The next prime is 18314928155773. The reversal of 18314928155720 is 2755182941381.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32705228570 + ... + 32705229129.

It is an arithmetic number, because the mean of its divisors is an integer number (1471735298250).

Almost surely, 2^{18314928155720} is an apocalyptic number.

18314928155720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18314928155720 is an abundant number, since it is smaller than the sum of its proper divisors (28780601388280).

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

18314928155720 is a wasteful number, since it uses less digits than its factorization.

18314928155720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65410457717 (or 65410457713 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 56.

The spelling of 18314928155720 in words is "eighteen trillion, three hundred fourteen billion, nine hundred twenty-eight million, one hundred fifty-five thousand, seven hundred twenty".