21753417316 has 24 divisors (see below), whose sum is σ = 38394419616. Its totient is φ = 10783782720.

The previous prime is 21753417307. The next prime is 21753417337. The reversal of 21753417316 is 61371435712.

It is a super-2 number, since 2×21753417316² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419955 + ... + 468901.

It is an arithmetic number, because the mean of its divisors is an integer number (1599767484).

Almost surely, 2^21753417316 is an apocalyptic number.

It is an amenable number.

21753417316 is a deficient number, since it is larger than the sum of its proper divisors (16641002300).

21753417316 is a wasteful number, since it uses less digits than its factorization.

21753417316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49899 (or 49897 counting only the distinct ones).

The product of its digits is 105840, while the sum is 40.

The spelling of 21753417316 in words is "twenty-one billion, seven hundred fifty-three million, four hundred seventeen thousand, three hundred sixteen".