21714653625 has 64 divisors (see below), whose sum is σ = 43090624512. Its totient is φ = 9495076800.

The previous prime is 21714653599. The next prime is 21714653641. The reversal of 21714653625 is 52635641712.

It is not a de Polignac number, because 21714653625 - 2⁵ = 21714653593 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 119457 + ... + 240206.

It is an arithmetic number, because the mean of its divisors is an integer number (673291008).

Almost surely, 2^21714653625 is an apocalyptic number.

21714653625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21714653625 is a deficient number, since it is larger than the sum of its proper divisors (21375970887).

21714653625 is a wasteful number, since it uses less digits than its factorization.

21714653625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359711 (or 359701 counting only the distinct ones).

The product of its digits is 302400, while the sum is 42.

The spelling of 21714653625 in words is "twenty-one billion, seven hundred fourteen million, six hundred fifty-three thousand, six hundred twenty-five".