18457837797 has 32 divisors (see below), whose sum is σ = 28916752384. Its totient is φ = 10251489600.

The previous prime is 18457837777. The next prime is 18457837807. The reversal of 18457837797 is 79773875481.

It is not a de Polignac number, because 18457837797 - 2¹⁴ = 18457821413 is a prime.

It is a super-2 number, since 2×18457837797² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18457837757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 758022 + ... + 781992.

It is an arithmetic number, because the mean of its divisors is an integer number (903648512).

Almost surely, 2^18457837797 is an apocalyptic number.

It is an amenable number.

18457837797 is a deficient number, since it is larger than the sum of its proper divisors (10458914587).

18457837797 is a wasteful number, since it uses less digits than its factorization.

18457837797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25009.

The product of its digits is 82978560, while the sum is 66.

The spelling of 18457837797 in words is "eighteen billion, four hundred fifty-seven million, eight hundred thirty-seven thousand, seven hundred ninety-seven".