26386868347 has 4 divisors (see below), whose sum is σ = 30156420976. Its totient is φ = 22617315720.

The previous prime is 26386868341. The next prime is 26386868383. The reversal of 26386868347 is 74386868362.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74386868362 = 2 ⋅37193434181.

It is a cyclic number.

It is not a de Polignac number, because 26386868347 - 2⁷ = 26386868219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26386868341) 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, 1884776304 + ... + 1884776317.

It is an arithmetic number, because the mean of its divisors is an integer number (7539105244).

Almost surely, 2^26386868347 is an apocalyptic number.

26386868347 is a deficient number, since it is larger than the sum of its proper divisors (3769552629).

26386868347 is an equidigital number, since it uses as much as digits as its factorization.

26386868347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3769552628.

The product of its digits is 55738368, while the sum is 61.

The spelling of 26386868347 in words is "twenty-six billion, three hundred eighty-six million, eight hundred sixty-eight thousand, three hundred forty-seven".