26255791247 has 8 divisors (see below), whose sum is σ = 30017725056. Its totient is φ = 22496634072.

The previous prime is 26255791201. The next prime is 26255791259. The reversal of 26255791247 is 74219755262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26255791247 - 2⁶ = 26255791183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26255791195 and 26255791204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26255791147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 673853 + ... + 711750.

It is an arithmetic number, because the mean of its divisors is an integer number (3752215632).

Almost surely, 2^26255791247 is an apocalyptic number.

26255791247 is a deficient number, since it is larger than the sum of its proper divisors (3761933809).

26255791247 is a wasteful number, since it uses less digits than its factorization.

26255791247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388317.

The product of its digits is 2116800, while the sum is 50.

The spelling of 26255791247 in words is "twenty-six billion, two hundred fifty-five million, seven hundred ninety-one thousand, two hundred forty-seven".