26974665918721 has 8 divisors (see below), whose sum is σ = 28105580966400. Its totient is φ = 25857134481360.

The previous prime is 26974665918689. The next prime is 26974665918749. The reversal of 26974665918721 is 12781956647962.

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 26974665918721 - 2⁵ = 26974665918689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26974665918521) 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, 3345898465 + ... + 3345906526.

It is an arithmetic number, because the mean of its divisors is an integer number (3513197620800).

Almost surely, 2^{26974665918721} is an apocalyptic number.

It is an amenable number.

26974665918721 is a deficient number, since it is larger than the sum of its proper divisors (1130915047679).

26974665918721 is a wasteful number, since it uses less digits than its factorization.

26974665918721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6691805159.

The product of its digits is 548674560, while the sum is 73.

The spelling of 26974665918721 in words is "twenty-six trillion, nine hundred seventy-four billion, six hundred sixty-five million, nine hundred eighteen thousand, seven hundred twenty-one".