26578702291667 has 2 divisors, whose sum is σ = 26578702291668. Its totient is φ = 26578702291666.

The previous prime is 26578702291613. The next prime is 26578702291681. The reversal of 26578702291667 is 76619220787562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26578702291667 - 2¹⁰ = 26578702290643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26578702291597 and 26578702291606.

It is not a weakly prime, because it can be changed into another prime (26578602291667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13289351145833 + 13289351145834.

It is an arithmetic number, because the mean of its divisors is an integer number (13289351145834).

Almost surely, 2^{26578702291667} is an apocalyptic number.

26578702291667 is a deficient number, since it is larger than the sum of its proper divisors (1).

26578702291667 is an equidigital number, since it uses as much as digits as its factorization.

26578702291667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 213373440, while the sum is 68.

The spelling of 26578702291667 in words is "twenty-six trillion, five hundred seventy-eight billion, seven hundred two million, two hundred ninety-one thousand, six hundred sixty-seven".