26790208705 has 12 divisors (see below), whose sum is σ = 34811420220. Its totient is φ = 19783538112.

The previous prime is 26790208651. The next prime is 26790208741. The reversal of 26790208705 is 50780209762.

It can be written as a sum of positive squares in 6 ways, for example, as 10604262529 + 16185946176 = 102977^2 + 127224^2 .

It is not a de Polignac number, because 26790208705 - 2¹¹ = 26790206657 is a prime.

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, 15851350 + ... + 15853039.

It is an arithmetic number, because the mean of its divisors is an integer number (2900951685).

Almost surely, 2^26790208705 is an apocalyptic number.

It is an amenable number.

26790208705 is a deficient number, since it is larger than the sum of its proper divisors (8021211515).

26790208705 is a wasteful number, since it uses less digits than its factorization.

26790208705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31704420 (or 31704407 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 26790208705 in words is "twenty-six billion, seven hundred ninety million, two hundred eight thousand, seven hundred five".