26171290196 has 6 divisors (see below), whose sum is σ = 45799757850. Its totient is φ = 13085645096.

The previous prime is 26171290183. The next prime is 26171290231. The reversal of 26171290196 is 69109217162.

It can be written as a sum of positive squares in only one way, i.e., 23275774096 + 2895516100 = 152564^2 + 53810^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271411271 + ... + 3271411278.

It is an arithmetic number, because the mean of its divisors is an integer number (7633292975).

Almost surely, 2^26171290196 is an apocalyptic number.

It is an amenable number.

26171290196 is a deficient number, since it is larger than the sum of its proper divisors (19628467654).

26171290196 is a wasteful number, since it uses less digits than its factorization.

26171290196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6542822553 (or 6542822551 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 44.

The spelling of 26171290196 in words is "twenty-six billion, one hundred seventy-one million, two hundred ninety thousand, one hundred ninety-six".