18886456941 has 24 divisors (see below), whose sum is σ = 27724371360. Its totient is φ = 11427709920.

The previous prime is 18886456907. The next prime is 18886456999. The reversal of 18886456941 is 14965468881.

It is a happy number.

It is not a de Polignac number, because 18886456941 - 2²³ = 18878068333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18886456241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182671 + ... + 266723.

It is an arithmetic number, because the mean of its divisors is an integer number (1155182140).

Almost surely, 2^18886456941 is an apocalyptic number.

18886456941 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18886456941 is a deficient number, since it is larger than the sum of its proper divisors (8837914419).

18886456941 is a wasteful number, since it uses less digits than its factorization.

18886456941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84697 (or 84686 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 60.

The spelling of 18886456941 in words is "eighteen billion, eight hundred eighty-six million, four hundred fifty-six thousand, nine hundred forty-one".