26493711457511 has 2 divisors, whose sum is σ = 26493711457512. Its totient is φ = 26493711457510.

The previous prime is 26493711457399. The next prime is 26493711457541. The reversal of 26493711457511 is 11575411739462.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26493711457511 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26493711457541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13246855728755 + 13246855728756.

It is an arithmetic number, because the mean of its divisors is an integer number (13246855728756).

Almost surely, 2^{26493711457511} is an apocalyptic number.

26493711457511 is a deficient number, since it is larger than the sum of its proper divisors (1).

26493711457511 is an equidigital number, since it uses as much as digits as its factorization.

26493711457511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6350400, while the sum is 56.

The spelling of 26493711457511 in words is "twenty-six trillion, four hundred ninety-three billion, seven hundred eleven million, four hundred fifty-seven thousand, five hundred eleven".