21886196344 has 32 divisors (see below), whose sum is σ = 42596827200. Its totient is φ = 10534677120.

The previous prime is 21886196341. The next prime is 21886196363. The reversal of 21886196344 is 44369168812.

It is a junction number, because it is equal to n+sod(n) for n = 21886196291 and 21886196300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21886196341) 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, 454179 + ... + 500050.

It is an arithmetic number, because the mean of its divisors is an integer number (1331150850).

Almost surely, 2^21886196344 is an apocalyptic number.

It is an amenable number.

21886196344 is a deficient number, since it is larger than the sum of its proper divisors (20710630856).

21886196344 is a wasteful number, since it uses less digits than its factorization.

21886196344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954343 (or 954339 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 52.

The spelling of 21886196344 in words is "twenty-one billion, eight hundred eighty-six million, one hundred ninety-six thousand, three hundred forty-four".