21042486622 has 8 divisors (see below), whose sum is σ = 32297770296. Its totient is φ = 10276563192.

The previous prime is 21042486557. The next prime is 21042486631. The reversal of 21042486622 is 22668424012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122339953 + ... + 122340124.

It is an arithmetic number, because the mean of its divisors is an integer number (4037221287).

Almost surely, 2^21042486622 is an apocalyptic number.

21042486622 is a deficient number, since it is larger than the sum of its proper divisors (11255283674).

21042486622 is a wasteful number, since it uses less digits than its factorization.

21042486622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244680122.

The product of its (nonzero) digits is 73728, while the sum is 37.

The spelling of 21042486622 in words is "twenty-one billion, forty-two million, four hundred eighty-six thousand, six hundred twenty-two".