21863370886 has 16 divisors (see below), whose sum is σ = 37530526464. Its totient is φ = 9357400584.

The previous prime is 21863370839. The next prime is 21863370887. The reversal of 21863370886 is 68807336812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21863370887) 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 7 ways as a sum of consecutive naturals, for example, 1040520 + ... + 1061323.

It is an arithmetic number, because the mean of its divisors is an integer number (2345657904).

Almost surely, 2^21863370886 is an apocalyptic number.

21863370886 is a deficient number, since it is larger than the sum of its proper divisors (15667155578).

21863370886 is a wasteful number, since it uses less digits than its factorization.

21863370886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102595.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 21863370886 in words is "twenty-one billion, eight hundred sixty-three million, three hundred seventy thousand, eight hundred eighty-six".