26779457671 has 8 divisors (see below), whose sum is σ = 27111794688. Its totient is φ = 26449059000.

The previous prime is 26779457647. The next prime is 26779457693. The reversal of 26779457671 is 17675497762.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26779457671 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 (26779457371) 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, 456775 + ... + 512056.

It is an arithmetic number, because the mean of its divisors is an integer number (3388974336).

Almost surely, 2^26779457671 is an apocalyptic number.

26779457671 is a deficient number, since it is larger than the sum of its proper divisors (332337017).

26779457671 is a wasteful number, since it uses less digits than its factorization.

26779457671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969173.

The product of its digits is 31116960, while the sum is 61.

The spelling of 26779457671 in words is "twenty-six billion, seven hundred seventy-nine million, four hundred fifty-seven thousand, six hundred seventy-one".