26158338487 has 2 divisors, whose sum is σ = 26158338488. Its totient is φ = 26158338486.

The previous prime is 26158338431. The next prime is 26158338491. The reversal of 26158338487 is 78483385162.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26158338487 - 2²³ = 26149949879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26158338187) 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 as a sum of consecutive naturals, namely, 13079169243 + 13079169244.

It is an arithmetic number, because the mean of its divisors is an integer number (13079169244).

Almost surely, 2^26158338487 is an apocalyptic number.

26158338487 is a deficient number, since it is larger than the sum of its proper divisors (1).

26158338487 is an equidigital number, since it uses as much as digits as its factorization.

26158338487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7741440, while the sum is 55.

The spelling of 26158338487 in words is "twenty-six billion, one hundred fifty-eight million, three hundred thirty-eight thousand, four hundred eighty-seven".