21859028622 has 12 divisors (see below), whose sum is σ = 47361228720. Its totient is φ = 7286342868.

The previous prime is 21859028617. The next prime is 21859028647. The reversal of 21859028622 is 22682095812.

21859028622 is a `hidden beast` number, since 2 + 18 + 5 + 9 + 0 + 2 + 8 + 622 = 666.

It is a super-3 number, since 3×21859028622³ (a number of 32 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 607195222 + ... + 607195257.

It is an arithmetic number, because the mean of its divisors is an integer number (3946769060).

Almost surely, 2^21859028622 is an apocalyptic number.

21859028622 is an abundant number, since it is smaller than the sum of its proper divisors (25502200098).

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

21859028622 is a wasteful number, since it uses less digits than its factorization.

21859028622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214390487 (or 1214390484 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 21859028622 in words is "twenty-one billion, eight hundred fifty-nine million, twenty-eight thousand, six hundred twenty-two".