26583016080385 has 12 divisors (see below), whose sum is σ = 31968967246524. Its totient is φ = 21220280968640.

The previous prime is 26583016080377. The next prime is 26583016080431. The reversal of 26583016080385 is 58308061038562.

It is a Cunningham number, because it is equal to 5155872²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 1 + 26583016080384 = 1^2 + 5155872^2 .

It is not a de Polignac number, because 26583016080385 - 2³ = 26583016080377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11445814 + ... + 13571023.

It is an arithmetic number, because the mean of its divisors is an integer number (2664080603877).

Almost surely, 2^{26583016080385} is an apocalyptic number.

It is an amenable number.

26583016080385 is a deficient number, since it is larger than the sum of its proper divisors (5385951166139).

26583016080385 is an frugal number, since it uses more digits than its factorization.

26583016080385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25017764 (or 25017303 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 55.

The spelling of 26583016080385 in words is "twenty-six trillion, five hundred eighty-three billion, sixteen million, eighty thousand, three hundred eighty-five".