26800803497 has 4 divisors (see below), whose sum is σ = 28862403780. Its totient is φ = 24739203216.

The previous prime is 26800803481. The next prime is 26800803551. The reversal of 26800803497 is 79430800862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2563295641 + 24237507856 = 50629^2 + 155684^2 .

It is not a de Polignac number, because 26800803497 - 2⁴ = 26800803481 is a prime.

It is a super-3 number, since 3×26800803497³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26800803427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030800122 + ... + 1030800147.

It is an arithmetic number, because the mean of its divisors is an integer number (7215600945).

Almost surely, 2^26800803497 is an apocalyptic number.

It is an amenable number.

26800803497 is a deficient number, since it is larger than the sum of its proper divisors (2061600283).

26800803497 is a wasteful number, since it uses less digits than its factorization.

26800803497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061600282.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 26800803497 in words is "twenty-six billion, eight hundred million, eight hundred three thousand, four hundred ninety-seven".