21708700614 has 24 divisors (see below), whose sum is σ = 47103613752. Its totient is φ = 7225757280.

The previous prime is 21708700583. The next prime is 21708700621. The reversal of 21708700614 is 41600780712.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 860239 + ... + 885114.

It is an arithmetic number, because the mean of its divisors is an integer number (1962650573).

Almost surely, 2^21708700614 is an apocalyptic number.

21708700614 is an abundant number, since it is smaller than the sum of its proper divisors (25394913138).

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

21708700614 is a wasteful number, since it uses less digits than its factorization.

21708700614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746052 (or 1746049 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The spelling of 21708700614 in words is "twenty-one billion, seven hundred eight million, seven hundred thousand, six hundred fourteen".