26155881611 has 8 divisors (see below), whose sum is σ = 26558009280. Its totient is φ = 25755530112.

The previous prime is 26155881601. The next prime is 26155881643. The reversal of 26155881611 is 11618855162.

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-26155881611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26155881601) 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, 414350 + ... + 473283.

It is an arithmetic number, because the mean of its divisors is an integer number (3319751160).

Almost surely, 2^26155881611 is an apocalyptic number.

26155881611 is a deficient number, since it is larger than the sum of its proper divisors (402127669).

26155881611 is an equidigital number, since it uses as much as digits as its factorization.

26155881611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888085.

The product of its digits is 115200, while the sum is 44.

The spelling of 26155881611 in words is "twenty-six billion, one hundred fifty-five million, eight hundred eighty-one thousand, six hundred eleven".