26854437685 has 16 divisors (see below), whose sum is σ = 34953154992. Its totient is φ = 19726643200.

The previous prime is 26854437629. The next prime is 26854437713. The reversal of 26854437685 is 58673445862.

It can be written as a sum of positive squares in 8 ways, for example, as 5014622596 + 21839815089 = 70814^2 + 147783^2 .

It is not a de Polignac number, because 26854437685 - 2⁷ = 26854437557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3849376 + ... + 3856345.

It is an arithmetic number, because the mean of its divisors is an integer number (2184572187).

Almost surely, 2^26854437685 is an apocalyptic number.

It is an amenable number.

26854437685 is a deficient number, since it is larger than the sum of its proper divisors (8098717307).

26854437685 is a wasteful number, since it uses less digits than its factorization.

26854437685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7705784.

The product of its digits is 38707200, while the sum is 58.

The spelling of 26854437685 in words is "twenty-six billion, eight hundred fifty-four million, four hundred thirty-seven thousand, six hundred eighty-five".