21625690336 has 12 divisors (see below), whose sum is σ = 42575577912. Its totient is φ = 10812845152.

The previous prime is 21625690291. The next prime is 21625690343. The reversal of 21625690336 is 63309652612.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 21625690292 and 21625690301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337901380 + ... + 337901443.

It is an arithmetic number, because the mean of its divisors is an integer number (3547964826).

Almost surely, 2^21625690336 is an apocalyptic number.

It is an amenable number.

21625690336 is a deficient number, since it is larger than the sum of its proper divisors (20949887576).

21625690336 is an equidigital number, since it uses as much as digits as its factorization.

21625690336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675802833 (or 675802825 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 43.

The spelling of 21625690336 in words is "twenty-one billion, six hundred twenty-five million, six hundred ninety thousand, three hundred thirty-six".