26863580057 has 2 divisors, whose sum is σ = 26863580058. Its totient is φ = 26863580056.

The previous prime is 26863580041. The next prime is 26863580101. The reversal of 26863580057 is 75008536862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18200438281 + 8663141776 = 134909^2 + 93076^2 .

It is a cyclic number.

It is not a de Polignac number, because 26863580057 - 2⁴ = 26863580041 is a prime.

It is a super-3 number, since 3×26863580057³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26863579987 and 26863580014.

It is not a weakly prime, because it can be changed into another prime (26863580657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13431790028 + 13431790029.

It is an arithmetic number, because the mean of its divisors is an integer number (13431790029).

Almost surely, 2^26863580057 is an apocalyptic number.

It is an amenable number.

26863580057 is a deficient number, since it is larger than the sum of its proper divisors (1).

26863580057 is an equidigital number, since it uses as much as digits as its factorization.

26863580057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 26863580057 in words is "twenty-six billion, eight hundred sixty-three million, five hundred eighty thousand, fifty-seven".