18368520018370 has 16 divisors (see below), whose sum is σ = 33126554658240. Its totient is φ = 7333359423984.

The previous prime is 18368520018361. The next prime is 18368520018391. The reversal of 18368520018370 is 7381002586381.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1756067430 + ... + 1756077889.

It is an arithmetic number, because the mean of its divisors is an integer number (2070409666140).

Almost surely, 2^{18368520018370} is an apocalyptic number.

18368520018370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18368520018370 is a deficient number, since it is larger than the sum of its proper divisors (14758034639870).

18368520018370 is a wasteful number, since it uses less digits than its factorization.

18368520018370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512145849.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 18368520018370 in words is "eighteen trillion, three hundred sixty-eight billion, five hundred twenty million, eighteen thousand, three hundred seventy".