26134865860 has 12 divisors (see below), whose sum is σ = 54883218348. Its totient is φ = 10453946336.

The previous prime is 26134865851. The next prime is 26134865893. The reversal of 26134865860 is 6856843162.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16715386944 + 9419478916 = 129288^2 + 97054^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653371627 + ... + 653371666.

It is an arithmetic number, because the mean of its divisors is an integer number (4573601529).

Almost surely, 2^26134865860 is an apocalyptic number.

26134865860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26134865860 is an abundant number, since it is smaller than the sum of its proper divisors (28748352488).

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

26134865860 is a wasteful number, since it uses less digits than its factorization.

26134865860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306743302 (or 1306743300 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 26134865860 in words is "twenty-six billion, one hundred thirty-four million, eight hundred sixty-five thousand, eight hundred sixty".