26128863 has 6 divisors (see below), whose sum is σ = 37741704. Its totient is φ = 17419236.

The previous prime is 26128859. The next prime is 26128871. The reversal of 26128863 is 36882162.

It is not a de Polignac number, because 26128863 - 2² = 26128859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26128873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1451595 + ... + 1451612.

It is an arithmetic number, because the mean of its divisors is an integer number (6290284).

Almost surely, 2^26128863 is an apocalyptic number.

26128863 is a deficient number, since it is larger than the sum of its proper divisors (11612841).

26128863 is a wasteful number, since it uses less digits than its factorization.

26128863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903213 (or 2903210 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 26128863 is about 5111.6399521093. The cubic root of 26128863 is about 296.7382314130.

The spelling of 26128863 in words is "twenty-six million, one hundred twenty-eight thousand, eight hundred sixty-three".