26762368261 has 2 divisors, whose sum is σ = 26762368262. Its totient is φ = 26762368260.

The previous prime is 26762368253. The next prime is 26762368301. The reversal of 26762368261 is 16286326762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15448004100 + 11314364161 = 124290^2 + 106369^2 .

It is a cyclic number.

It is not a de Polignac number, because 26762368261 - 2³ = 26762368253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26762368861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13381184130 + 13381184131.

It is an arithmetic number, because the mean of its divisors is an integer number (13381184131).

Almost surely, 2^26762368261 is an apocalyptic number.

It is an amenable number.

26762368261 is a deficient number, since it is larger than the sum of its proper divisors (1).

26762368261 is an equidigital number, since it uses as much as digits as its factorization.

26762368261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 49.

The spelling of 26762368261 in words is "twenty-six billion, seven hundred sixty-two million, three hundred sixty-eight thousand, two hundred sixty-one".