26481974579 has 8 divisors (see below), whose sum is σ = 27153781200. Its totient is φ = 25811401600.

The previous prime is 26481974569. The next prime is 26481974639. The reversal of 26481974579 is 97547918462.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26481974579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26481974569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264857 + ... + 350874.

It is an arithmetic number, because the mean of its divisors is an integer number (3394222650).

Almost surely, 2^26481974579 is an apocalyptic number.

26481974579 is a deficient number, since it is larger than the sum of its proper divisors (671806621).

26481974579 is a wasteful number, since it uses less digits than its factorization.

26481974579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616821.

The product of its digits is 30481920, while the sum is 62.

The spelling of 26481974579 in words is "twenty-six billion, four hundred eighty-one million, nine hundred seventy-four thousand, five hundred seventy-nine".