18380007073771 has 18 divisors (see below), whose sum is σ = 21845414805468. Its totient is φ = 15419093989320.

The previous prime is 18380007073763. The next prime is 18380007073789. The reversal of 18380007073771 is 17737070008381.

It is not a de Polignac number, because 18380007073771 - 2³ = 18380007073763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18380007073471) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 84794925 + ... + 85011406.

Almost surely, 2^{18380007073771} is an apocalyptic number.

18380007073771 is a deficient number, since it is larger than the sum of its proper divisors (3465407731697).

18380007073771 is an equidigital number, since it uses as much as digits as its factorization.

18380007073771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169806439 (or 169806385 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 52.

The spelling of 18380007073771 in words is "eighteen trillion, three hundred eighty billion, seven million, seventy-three thousand, seven hundred seventy-one".