26261317292 has 48 divisors (see below), whose sum is σ = 54824781312. Its totient is φ = 10761864960.

The previous prime is 26261317259. The next prime is 26261317333. The reversal of 26261317292 is 29271316262.

It is a super-3 number, since 3×26261317292³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2753492 + ... + 2763012.

It is an arithmetic number, because the mean of its divisors is an integer number (1142182944).

Almost surely, 2^26261317292 is an apocalyptic number.

It is an amenable number.

26261317292 is an abundant number, since it is smaller than the sum of its proper divisors (28563464020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26261317292 is a wasteful number, since it uses less digits than its factorization.

26261317292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13838 (or 13836 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The spelling of 26261317292 in words is "twenty-six billion, two hundred sixty-one million, three hundred seventeen thousand, two hundred ninety-two".