21112606753 has 16 divisors (see below), whose sum is σ = 24655762944. Its totient is φ = 17701646400.

The previous prime is 21112606717. The next prime is 21112606759. The reversal of 21112606753 is 35760621112.

It is a cyclic number.

It is not a de Polignac number, because 21112606753 - 2⁹ = 21112606241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21112606759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 608551 + ... + 642307.

It is an arithmetic number, because the mean of its divisors is an integer number (1540985184).

Almost surely, 2^21112606753 is an apocalyptic number.

It is an amenable number.

21112606753 is a deficient number, since it is larger than the sum of its proper divisors (3543156191).

21112606753 is a wasteful number, since it uses less digits than its factorization.

21112606753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35712.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 21112606753 in words is "twenty-one billion, one hundred twelve million, six hundred six thousand, seven hundred fifty-three".