21850627044 has 24 divisors (see below), whose sum is σ = 51109465120. Its totient is φ = 7265732544.

The previous prime is 21850627033. The next prime is 21850627069. The reversal of 21850627044 is 44072605812.

It is a junction number, because it is equal to n+sod(n) for n = 21850626993 and 21850627011.

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 in 7 ways as a sum of consecutive naturals, for example, 2221114 + ... + 2230929.

Almost surely, 2^21850627044 is an apocalyptic number.

It is an amenable number.

21850627044 is an abundant number, since it is smaller than the sum of its proper divisors (29258838076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21850627044 is a wasteful number, since it uses less digits than its factorization.

21850627044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4452459 (or 4452457 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 21850627044 in words is "twenty-one billion, eight hundred fifty million, six hundred twenty-seven thousand, forty-four".