26195663873 has 4 divisors (see below), whose sum is σ = 26239396800. Its totient is φ = 26151930948.

The previous prime is 26195663863. The next prime is 26195663887. The reversal of 26195663873 is 37836659162.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26195663873 - 2²² = 26191469569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26195663833) 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, 21865565 + ... + 21866762.

It is an arithmetic number, because the mean of its divisors is an integer number (6559849200).

Almost surely, 2^26195663873 is an apocalyptic number.

It is an amenable number.

26195663873 is a deficient number, since it is larger than the sum of its proper divisors (43732927).

26195663873 is an equidigital number, since it uses as much as digits as its factorization.

26195663873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43732926.

The product of its digits is 9797760, while the sum is 56.

The spelling of 26195663873 in words is "twenty-six billion, one hundred ninety-five million, six hundred sixty-three thousand, eight hundred seventy-three".