26130717861 has 8 divisors (see below), whose sum is σ = 34997195520. Its totient is φ = 17342359392.

The previous prime is 26130717827. The next prime is 26130717863. The reversal of 26130717861 is 16871703162.

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

It is not a de Polignac number, because 26130717861 - 2⁶ = 26130717797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26130717863) 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, 19529016 + ... + 19530353.

It is an arithmetic number, because the mean of its divisors is an integer number (4374649440).

Almost surely, 2^26130717861 is an apocalyptic number.

It is an amenable number.

26130717861 is a deficient number, since it is larger than the sum of its proper divisors (8866477659).

26130717861 is a wasteful number, since it uses less digits than its factorization.

26130717861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39059595.

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 26130717861 in words is "twenty-six billion, one hundred thirty million, seven hundred seventeen thousand, eight hundred sixty-one".