26742712661579 has 2 divisors, whose sum is σ = 26742712661580. Its totient is φ = 26742712661578.

The previous prime is 26742712661551. The next prime is 26742712661689. The reversal of 26742712661579 is 97516621724762.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26742712661579 - 2¹² = 26742712657483 is a prime.

It is not a weakly prime, because it can be changed into another prime (26742712661279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13371356330789 + 13371356330790.

It is an arithmetic number, because the mean of its divisors is an integer number (13371356330790).

Almost surely, 2^{26742712661579} is an apocalyptic number.

26742712661579 is a deficient number, since it is larger than the sum of its proper divisors (1).

26742712661579 is an equidigital number, since it uses as much as digits as its factorization.

26742712661579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 106686720, while the sum is 65.

The spelling of 26742712661579 in words is "twenty-six trillion, seven hundred forty-two billion, seven hundred twelve million, six hundred sixty-one thousand, five hundred seventy-nine".