26144220877 has 2 divisors, whose sum is σ = 26144220878. Its totient is φ = 26144220876.

The previous prime is 26144220779. The next prime is 26144220929. The reversal of 26144220877 is 77802244162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22618355236 + 3525865641 = 150394^2 + 59379^2 .

It is a cyclic number.

It is not a de Polignac number, because 26144220877 - 2⁷ = 26144220749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26144220577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13072110438 + 13072110439.

It is an arithmetic number, because the mean of its divisors is an integer number (13072110439).

Almost surely, 2^26144220877 is an apocalyptic number.

It is an amenable number.

26144220877 is a deficient number, since it is larger than the sum of its proper divisors (1).

26144220877 is an equidigital number, since it uses as much as digits as its factorization.

26144220877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 43.

The spelling of 26144220877 in words is "twenty-six billion, one hundred forty-four million, two hundred twenty thousand, eight hundred seventy-seven".