26143513057 has 2 divisors, whose sum is σ = 26143513058. Its totient is φ = 26143513056.

The previous prime is 26143513027. The next prime is 26143513103. The reversal of 26143513057 is 75031534162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22255865856 + 3887647201 = 149184^2 + 62351^2 .

It is a cyclic number.

It is not a de Polignac number, because 26143513057 - 2⁷ = 26143512929 is a prime.

It is not a weakly prime, because it can be changed into another prime (26143513007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13071756528 + 13071756529.

It is an arithmetic number, because the mean of its divisors is an integer number (13071756529).

Almost surely, 2^26143513057 is an apocalyptic number.

It is an amenable number.

26143513057 is a deficient number, since it is larger than the sum of its proper divisors (1).

26143513057 is an equidigital number, since it uses as much as digits as its factorization.

26143513057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 26143513057 in words is "twenty-six billion, one hundred forty-three million, five hundred thirteen thousand, fifty-seven".