21675411753 has 8 divisors (see below), whose sum is σ = 28983360000. Its totient is φ = 14408869008.

The previous prime is 21675411713. The next prime is 21675411781. The reversal of 21675411753 is 35711457612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21675411753 - 2⁸ = 21675411497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21675411713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10350153 + ... + 10352246.

It is an arithmetic number, because the mean of its divisors is an integer number (3622920000).

Almost surely, 2^21675411753 is an apocalyptic number.

It is an amenable number.

21675411753 is a deficient number, since it is larger than the sum of its proper divisors (7307948247).

21675411753 is a wasteful number, since it uses less digits than its factorization.

21675411753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20702751.

The product of its digits is 176400, while the sum is 42.

The spelling of 21675411753 in words is "twenty-one billion, six hundred seventy-five million, four hundred eleven thousand, seven hundred fifty-three".