18057719043 has 144 divisors (see below), whose sum is σ = 34514678016. Its totient is φ = 9187032960.

The previous prime is 18057718951. The next prime is 18057719047. The reversal of 18057719043 is 34091775081.

It is not a de Polignac number, because 18057719043 - 2²⁸ = 17789283587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18057719043.

It is not an unprimeable number, because it can be changed into a prime (18057719047) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 18596548 + ... + 18597518.

It is an arithmetic number, because the mean of its divisors is an integer number (239685264).

Almost surely, 2^18057719043 is an apocalyptic number.

18057719043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

18057719043 is a deficient number, since it is larger than the sum of its proper divisors (16456958973).

18057719043 is an equidigital number, since it uses as much as digits as its factorization.

18057719043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064 (or 1023 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 18057719043 in words is "eighteen billion, fifty-seven million, seven hundred nineteen thousand, forty-three".