26278460985 has 16 divisors (see below), whose sum is σ = 48052043136. Its totient is φ = 12013010688.

The previous prime is 26278460969. The next prime is 26278461029. The reversal of 26278460985 is 58906487262.

It is a happy number.

It is not a de Polignac number, because 26278460985 - 2⁴ = 26278460969 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125135424 + ... + 125135633.

It is an arithmetic number, because the mean of its divisors is an integer number (3003252696).

Almost surely, 2^26278460985 is an apocalyptic number.

It is an amenable number.

26278460985 is a deficient number, since it is larger than the sum of its proper divisors (21773582151).

26278460985 is a wasteful number, since it uses less digits than its factorization.

26278460985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250271072.

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 26278460985 in words is "twenty-six billion, two hundred seventy-eight million, four hundred sixty thousand, nine hundred eighty-five".