26518068342857 has 64 divisors (see below), whose sum is σ = 33780237926400. Its totient is φ = 20250472919040.

The previous prime is 26518068342847. The next prime is 26518068342877. The reversal of 26518068342857 is 75824386081562.

It is a happy number.

It is not a de Polignac number, because 26518068342857 - 2⁴⁰ = 25418556715081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26518068342793 and 26518068342802.

It is not an unprimeable number, because it can be changed into a prime (26518068342817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1677395369 + ... + 1677411177.

It is an arithmetic number, because the mean of its divisors is an integer number (527816217600).

Almost surely, 2^{26518068342857} is an apocalyptic number.

It is an amenable number.

26518068342857 is a deficient number, since it is larger than the sum of its proper divisors (7262169583543).

26518068342857 is a wasteful number, since it uses less digits than its factorization.

26518068342857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17406.

The product of its (nonzero) digits is 154828800, while the sum is 65.

The spelling of 26518068342857 in words is "twenty-six trillion, five hundred eighteen billion, sixty-eight million, three hundred forty-two thousand, eight hundred fifty-seven".