26279676677 has 2 divisors, whose sum is σ = 26279676678. Its totient is φ = 26279676676.

The previous prime is 26279676673. The next prime is 26279676737. The reversal of 26279676677 is 77667697262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22293774721 + 3985901956 = 149311^2 + 63134^2 .

It is a cyclic number.

It is not a de Polignac number, because 26279676677 - 2² = 26279676673 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26279676673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13139838338 + 13139838339.

It is an arithmetic number, because the mean of its divisors is an integer number (13139838339).

Almost surely, 2^26279676677 is an apocalyptic number.

It is an amenable number.

26279676677 is a deficient number, since it is larger than the sum of its proper divisors (1).

26279676677 is an equidigital number, since it uses as much as digits as its factorization.

26279676677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112021056, while the sum is 65.

The spelling of 26279676677 in words is "twenty-six billion, two hundred seventy-nine million, six hundred seventy-six thousand, six hundred seventy-seven".