26258641247 has 8 divisors (see below), whose sum is σ = 26525158752. Its totient is φ = 25992252000.

The previous prime is 26258641217. The next prime is 26258641249. The reversal of 26258641247 is 74214685262.

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 26258641247 - 2²⁰ = 26257592671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26258641249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410222 + ... + 469892.

It is an arithmetic number, because the mean of its divisors is an integer number (3315644844).

Almost surely, 2^26258641247 is an apocalyptic number.

26258641247 is a deficient number, since it is larger than the sum of its proper divisors (266517505).

26258641247 is a wasteful number, since it uses less digits than its factorization.

26258641247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64129.

The product of its digits is 1290240, while the sum is 47.

The spelling of 26258641247 in words is "twenty-six billion, two hundred fifty-eight million, six hundred forty-one thousand, two hundred forty-seven".