26797939905 has 16 divisors (see below), whose sum is σ = 46774586304. Its totient is φ = 12992940480.

The previous prime is 26797939873. The next prime is 26797939907. The reversal of 26797939905 is 50993979762.

It is a happy number.

It is not a de Polignac number, because 26797939905 - 2⁵ = 26797939873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26797939907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81205714 + ... + 81206043.

It is an arithmetic number, because the mean of its divisors is an integer number (2923411644).

Almost surely, 2^26797939905 is an apocalyptic number.

It is an amenable number.

26797939905 is a deficient number, since it is larger than the sum of its proper divisors (19976646399).

26797939905 is a wasteful number, since it uses less digits than its factorization.

26797939905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162411776.

The product of its (nonzero) digits is 57868020, while the sum is 66.

The spelling of 26797939905 in words is "twenty-six billion, seven hundred ninety-seven million, nine hundred thirty-nine thousand, nine hundred five".