21722761614 has 48 divisors (see below), whose sum is σ = 45078843600. Its totient is φ = 6974398080.

The previous prime is 21722761603. The next prime is 21722761637. The reversal of 21722761614 is 41616722712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1528212 + ... + 1542360.

It is an arithmetic number, because the mean of its divisors is an integer number (939142575).

Almost surely, 2^21722761614 is an apocalyptic number.

21722761614 is an abundant number, since it is smaller than the sum of its proper divisors (23356081986).

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

21722761614 is a wasteful number, since it uses less digits than its factorization.

21722761614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14353 (or 14274 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The spelling of 21722761614 in words is "twenty-one billion, seven hundred twenty-two million, seven hundred sixty-one thousand, six hundred fourteen".