18568781341 has 8 divisors (see below), whose sum is σ = 20358648000. Its totient is φ = 16795880640.

The previous prime is 18568781299. The next prime is 18568781351. The reversal of 18568781341 is 14318786581.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18568781341 - 2²¹ = 18566684189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18568781351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4239196 + ... + 4243573.

It is an arithmetic number, because the mean of its divisors is an integer number (2544831000).

Almost surely, 2^18568781341 is an apocalyptic number.

18568781341 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18568781341 is a deficient number, since it is larger than the sum of its proper divisors (1789866659).

18568781341 is a wasteful number, since it uses less digits than its factorization.

18568781341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8482979.

The product of its digits is 1290240, while the sum is 52.

The spelling of 18568781341 in words is "eighteen billion, five hundred sixty-eight million, seven hundred eighty-one thousand, three hundred forty-one".