26157875568673 has 2 divisors, whose sum is σ = 26157875568674. Its totient is φ = 26157875568672.

The previous prime is 26157875568581. The next prime is 26157875568677. The reversal of 26157875568673 is 37686557875162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15298557127569 + 10859318441104 = 3911337^2 + 3295348^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26157875568673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26157875568673.

It is not a weakly prime, because it can be changed into another prime (26157875568677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13078937784336 + 13078937784337.

It is an arithmetic number, because the mean of its divisors is an integer number (13078937784337).

Almost surely, 2^{26157875568673} is an apocalyptic number.

It is an amenable number.

26157875568673 is a deficient number, since it is larger than the sum of its proper divisors (1).

26157875568673 is an equidigital number, since it uses as much as digits as its factorization.

26157875568673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224000, while the sum is 76.

The spelling of 26157875568673 in words is "twenty-six trillion, one hundred fifty-seven billion, eight hundred seventy-five million, five hundred sixty-eight thousand, six hundred seventy-three".