26791880551 has 2 divisors, whose sum is σ = 26791880552. Its totient is φ = 26791880550.

The previous prime is 26791880543. The next prime is 26791880569. The reversal of 26791880551 is 15508819762.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26791880551 - 2³ = 26791880543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26791880501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13395940275 + 13395940276.

It is an arithmetic number, because the mean of its divisors is an integer number (13395940276).

Almost surely, 2^26791880551 is an apocalyptic number.

26791880551 is a deficient number, since it is larger than the sum of its proper divisors (1).

26791880551 is an equidigital number, since it uses as much as digits as its factorization.

26791880551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 52.

The spelling of 26791880551 in words is "twenty-six billion, seven hundred ninety-one million, eight hundred eighty thousand, five hundred fifty-one".