26261723519 has 2 divisors, whose sum is σ = 26261723520. Its totient is φ = 26261723518.

The previous prime is 26261723503. The next prime is 26261723533. The reversal of 26261723519 is 91532716262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26261723519 - 2⁴ = 26261723503 is a prime.

It is a super-2 number, since 2×26261723519² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26261723519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26261723569) 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, 13130861759 + 13130861760.

It is an arithmetic number, because the mean of its divisors is an integer number (13130861760).

Almost surely, 2^26261723519 is an apocalyptic number.

26261723519 is a deficient number, since it is larger than the sum of its proper divisors (1).

26261723519 is an equidigital number, since it uses as much as digits as its factorization.

26261723519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The spelling of 26261723519 in words is "twenty-six billion, two hundred sixty-one million, seven hundred twenty-three thousand, five hundred nineteen".