26681979743 has 8 divisors (see below), whose sum is σ = 27631223280. Its totient is φ = 25734681280.

The previous prime is 26681979721. The next prime is 26681979767. The reversal of 26681979743 is 34797918662.

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 26681979743 - 2⁸ = 26681979487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26681979703) 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, 458318 + ... + 513243.

It is an arithmetic number, because the mean of its divisors is an integer number (3453902910).

Almost surely, 2^26681979743 is an apocalyptic number.

26681979743 is a deficient number, since it is larger than the sum of its proper divisors (949243537).

26681979743 is an equidigital number, since it uses as much as digits as its factorization.

26681979743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972537.

The product of its digits is 27433728, while the sum is 62.

The spelling of 26681979743 in words is "twenty-six billion, six hundred eighty-one million, nine hundred seventy-nine thousand, seven hundred forty-three".