26986960785 has 32 divisors (see below), whose sum is σ = 44845332480. Its totient is φ = 13848029888.

The previous prime is 26986960771. The next prime is 26986960801. The reversal of 26986960785 is 58706968962.

It is a cyclic number.

It is not a de Polignac number, because 26986960785 - 2⁷ = 26986960657 is a prime.

It is a super-2 number, since 2×26986960785² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282807 + ... + 365996.

It is an arithmetic number, because the mean of its divisors is an integer number (1401416640).

Almost surely, 2^26986960785 is an apocalyptic number.

It is an amenable number.

26986960785 is a deficient number, since it is larger than the sum of its proper divisors (17858371695).

26986960785 is a wasteful number, since it uses less digits than its factorization.

26986960785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648917.

The product of its (nonzero) digits is 78382080, while the sum is 66.

The spelling of 26986960785 in words is "twenty-six billion, nine hundred eighty-six million, nine hundred sixty thousand, seven hundred eighty-five".