26128285311 has 4 divisors (see below), whose sum is σ = 34837713752. Its totient is φ = 17418856872.

The previous prime is 26128285289. The next prime is 26128285333. The reversal of 26128285311 is 11358282162.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (26128285289) and next prime (26128285333).

It is a de Polignac number, because none of the positive numbers 2^k-26128285311 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 26128285311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26128285111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4354714216 + ... + 4354714221.

It is an arithmetic number, because the mean of its divisors is an integer number (8709428438).

Almost surely, 2^26128285311 is an apocalyptic number.

26128285311 is a deficient number, since it is larger than the sum of its proper divisors (8709428441).

26128285311 is an equidigital number, since it uses as much as digits as its factorization.

26128285311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8709428440.

The product of its digits is 46080, while the sum is 39.

The spelling of 26128285311 in words is "twenty-six billion, one hundred twenty-eight million, two hundred eighty-five thousand, three hundred eleven".