26669047859 has 2 divisors, whose sum is σ = 26669047860. Its totient is φ = 26669047858.

The previous prime is 26669047829. The next prime is 26669047913. The reversal of 26669047859 is 95874096662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26669047859 - 2¹² = 26669043763 is a prime.

It is a super-2 number, since 2×26669047859² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26669047819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13334523929 + 13334523930.

It is an arithmetic number, because the mean of its divisors is an integer number (13334523930).

Almost surely, 2^26669047859 is an apocalyptic number.

26669047859 is a deficient number, since it is larger than the sum of its proper divisors (1).

26669047859 is an equidigital number, since it uses as much as digits as its factorization.

26669047859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39191040, while the sum is 62.

The spelling of 26669047859 in words is "twenty-six billion, six hundred sixty-nine million, forty-seven thousand, eight hundred fifty-nine".