18757312022816 has 12 divisors (see below), whose sum is σ = 36928458044982. Its totient is φ = 9378656011392.

The previous prime is 18757312022783. The next prime is 18757312022857. The reversal of 18757312022816 is 61822021375781.

It can be written as a sum of positive squares in only one way, i.e., 18756001872400 + 1310150416 = 4330820^2 + 36196^2 .

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 293083000325 + ... + 293083000388.

Almost surely, 2^{18757312022816} is an apocalyptic number.

18757312022816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18757312022816 is a deficient number, since it is larger than the sum of its proper divisors (18171146022166).

18757312022816 is an equidigital number, since it uses as much as digits as its factorization.

18757312022816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586166000723 (or 586166000715 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 18757312022816 in words is "eighteen trillion, seven hundred fifty-seven billion, three hundred twelve million, twenty-two thousand, eight hundred sixteen".