26776804687 has 2 divisors, whose sum is σ = 26776804688. Its totient is φ = 26776804686.

The previous prime is 26776804661. The next prime is 26776804699. The reversal of 26776804687 is 78640867762.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26776804687 - 2¹⁵ = 26776771919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26776804627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13388402343 + 13388402344.

It is an arithmetic number, because the mean of its divisors is an integer number (13388402344).

Almost surely, 2^26776804687 is an apocalyptic number.

26776804687 is a deficient number, since it is larger than the sum of its proper divisors (1).

26776804687 is an equidigital number, since it uses as much as digits as its factorization.

26776804687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37933056, while the sum is 61.

The spelling of 26776804687 in words is "twenty-six billion, seven hundred seventy-six million, eight hundred four thousand, six hundred eighty-seven".