26776485971 has 4 divisors (see below), whose sum is σ = 26779223352. Its totient is φ = 26773748592.

The previous prime is 26776485899. The next prime is 26776485973. The reversal of 26776485971 is 17958467762.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26776485971 - 2¹⁰ = 26776484947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26776485973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353965 + ... + 1373598.

It is an arithmetic number, because the mean of its divisors is an integer number (6694805838).

Almost surely, 2^26776485971 is an apocalyptic number.

26776485971 is a deficient number, since it is larger than the sum of its proper divisors (2737381).

26776485971 is an equidigital number, since it uses as much as digits as its factorization.

26776485971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737380.

The product of its digits is 35562240, while the sum is 62.

The spelling of 26776485971 in words is "twenty-six billion, seven hundred seventy-six million, four hundred eighty-five thousand, nine hundred seventy-one".