26109707886 has 32 divisors (see below), whose sum is σ = 58193784480. Its totient is φ = 8677404288.

The previous prime is 26109707879. The next prime is 26109707909. The reversal of 26109707886 is 68870790162.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 699181 + ... + 735576.

It is an arithmetic number, because the mean of its divisors is an integer number (1818555765).

Almost surely, 2^26109707886 is an apocalyptic number.

26109707886 is an abundant number, since it is smaller than the sum of its proper divisors (32084076594).

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

26109707886 is a wasteful number, since it uses less digits than its factorization.

26109707886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435105 (or 1435099 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 26109707886 in words is "twenty-six billion, one hundred nine million, seven hundred seven thousand, eight hundred eighty-six".