26172982079 has 8 divisors (see below), whose sum is σ = 26343546768. Its totient is φ = 26002944000.

The previous prime is 26172982061. The next prime is 26172982081. The reversal of 26172982079 is 97028927162.

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-26172982079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26172982079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26172982679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31682 + ... + 230975.

It is an arithmetic number, because the mean of its divisors is an integer number (3292943346).

Almost surely, 2^26172982079 is an apocalyptic number.

26172982079 is a deficient number, since it is larger than the sum of its proper divisors (170564689).

26172982079 is a wasteful number, since it uses less digits than its factorization.

26172982079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263305.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 26172982079 in words is "twenty-six billion, one hundred seventy-two million, nine hundred eighty-two thousand, seventy-nine".