18334377343381 has 32 divisors (see below), whose sum is σ = 21102864727680. Its totient is φ = 15753636864000.

The previous prime is 18334377343379. The next prime is 18334377343409.

18334377343381 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 18334377343381 - 2¹ = 18334377343379 is a prime.

It is a super-2 number, since 2×18334377343381² (a number of 27 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 (18334377343301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168874791 + ... + 168983323.

It is an arithmetic number, because the mean of its divisors is an integer number (659464522740).

Almost surely, 2^{18334377343381} is an apocalyptic number.

18334377343381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18334377343381 is a deficient number, since it is larger than the sum of its proper divisors (2768487384299).

18334377343381 is a wasteful number, since it uses less digits than its factorization.

18334377343381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110437.

The product of its digits is 36578304, while the sum is 58.

The spelling of 18334377343381 in words is "eighteen trillion, three hundred thirty-four billion, three hundred seventy-seven million, three hundred forty-three thousand, three hundred eighty-one".