26749705707 has 16 divisors (see below), whose sum is σ = 39632097280. Its totient is φ = 17831830536.

The previous prime is 26749705673. The next prime is 26749705711. The reversal of 26749705707 is 70750794762.

26749705707 is a `hidden beast` number, since 2 + 67 + 4 + 9 + 7 + 0 + 570 + 7 = 666.

It is not a de Polignac number, because 26749705707 - 2¹⁸ = 26749443563 is a prime.

It is a super-2 number, since 2×26749705707² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26749700707) by changing a digit.

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, 464838 + ... + 519204.

It is an arithmetic number, because the mean of its divisors is an integer number (2477006080).

Almost surely, 2^26749705707 is an apocalyptic number.

26749705707 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

26749705707 is a deficient number, since it is larger than the sum of its proper divisors (12882391573).

26749705707 is a wasteful number, since it uses less digits than its factorization.

26749705707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72599 (or 72593 counting only the distinct ones).

The product of its (nonzero) digits is 5186160, while the sum is 54.

The spelling of 26749705707 in words is "twenty-six billion, seven hundred forty-nine million, seven hundred five thousand, seven hundred seven".