26722462989691 has 8 divisors (see below), whose sum is σ = 30540476494304. Its totient is φ = 22904579183040.

The previous prime is 26722462989679. The next prime is 26722462989731. The reversal of 26722462989691 is 19698926422762.

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 26722462989691 - 2³⁹ = 26172707175803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26722462989791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31982580 + ... + 32807473.

It is an arithmetic number, because the mean of its divisors is an integer number (3817559561788).

Almost surely, 2^{26722462989691} is an apocalyptic number.

26722462989691 is a deficient number, since it is larger than the sum of its proper divisors (3818013504613).

26722462989691 is an equidigital number, since it uses as much as digits as its factorization.

26722462989691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64848981.

The product of its digits is 564350976, while the sum is 73.

The spelling of 26722462989691 in words is "twenty-six trillion, seven hundred twenty-two billion, four hundred sixty-two million, nine hundred eighty-nine thousand, six hundred ninety-one".