21719081618632 has 32 divisors (see below), whose sum is σ = 40904350963200. Its totient is φ = 10811278436224.

The previous prime is 21719081618627. The next prime is 21719081618659. The reversal of 21719081618632 is 23681618091712.

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 7 ways as a sum of consecutive naturals, for example, 5846913 + ... + 8810479.

It is an arithmetic number, because the mean of its divisors is an integer number (1278260967600).

Almost surely, 2^{21719081618632} is an apocalyptic number.

It is an amenable number.

21719081618632 is a deficient number, since it is larger than the sum of its proper divisors (19185269344568).

21719081618632 is a wasteful number, since it uses less digits than its factorization.

21719081618632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967645 (or 2967641 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 21719081618632 in words is "twenty-one trillion, seven hundred nineteen billion, eighty-one million, six hundred eighteen thousand, six hundred thirty-two".