21863046955184 has 20 divisors (see below), whose sum is σ = 42361502258040. Its totient is φ = 10931046372480.

The previous prime is 21863046955129. The next prime is 21863046955193. The reversal of 21863046955184 is 48155964036812.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 29440874 + ... + 30174345.

It is an arithmetic number, because the mean of its divisors is an integer number (2118075112902).

Almost surely, 2^{21863046955184} is an apocalyptic number.

It is an amenable number.

21863046955184 is a deficient number, since it is larger than the sum of its proper divisors (20498455302856).

21863046955184 is a wasteful number, since it uses less digits than its factorization.

21863046955184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59638148 (or 59638142 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 62.

The spelling of 21863046955184 in words is "twenty-one trillion, eight hundred sixty-three billion, forty-six million, nine hundred fifty-five thousand, one hundred eighty-four".