26012048065 has 8 divisors (see below), whose sum is σ = 31230131688. Its totient is φ = 20799189120.

The previous prime is 26012048011. The next prime is 26012048119. The reversal of 26012048065 is 56084021062.

It is an interprime number because it is at equal distance from previous prime (26012048011) and next prime (26012048119).

It can be written as a sum of positive squares in 4 ways, for example, as 13555479184 + 12456568881 = 116428^2 + 111609^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26012048065 - 2⁷ = 26012047937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26012048065.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1295206 + ... + 1315135.

It is an arithmetic number, because the mean of its divisors is an integer number (3903766461).

Almost surely, 2^26012048065 is an apocalyptic number.

It is an amenable number.

26012048065 is a deficient number, since it is larger than the sum of its proper divisors (5218083623).

26012048065 is a wasteful number, since it uses less digits than its factorization.

26012048065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2612339.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 26012048065 in words is "twenty-six billion, twelve million, forty-eight thousand, sixty-five".