20751675458681 has 8 divisors (see below), whose sum is σ = 21175424040960. Its totient is φ = 20330327718832.

The previous prime is 20751675458669. The next prime is 20751675458687. The reversal of 20751675458681 is 18685457615702.

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

It is a cyclic number.

It is not a de Polignac number, because 20751675458681 - 2¹⁴ = 20751675442297 is a prime.

It is a super-2 number, since 2×20751675458681² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20751675458687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600193145 + ... + 600227718.

It is an arithmetic number, because the mean of its divisors is an integer number (2646928005120).

Almost surely, 2^{20751675458681} is an apocalyptic number.

It is an amenable number.

20751675458681 is a deficient number, since it is larger than the sum of its proper divisors (423748582279).

20751675458681 is a wasteful number, since it uses less digits than its factorization.

20751675458681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200421215.

The product of its (nonzero) digits is 112896000, while the sum is 65.

The spelling of 20751675458681 in words is "twenty trillion, seven hundred fifty-one billion, six hundred seventy-five million, four hundred fifty-eight thousand, six hundred eighty-one".