26054947197 has 12 divisors (see below), whose sum is σ = 38552849244. Its totient is φ = 16946306880.

The previous prime is 26054947187. The next prime is 26054947199. The reversal of 26054947197 is 79174945062.

26054947197 is a `hidden beast` number, since 2 + 6 + 0 + 549 + 4 + 7 + 1 + 97 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12546464121 + 13508483076 = 112011^2 + 116226^2 .

It is not a de Polignac number, because 26054947197 - 2¹⁶ = 26054881661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26054947199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35304438 + ... + 35305175.

It is an arithmetic number, because the mean of its divisors is an integer number (3212737437).

Almost surely, 2^26054947197 is an apocalyptic number.

It is an amenable number.

26054947197 is a deficient number, since it is larger than the sum of its proper divisors (12497902047).

26054947197 is a wasteful number, since it uses less digits than its factorization.

26054947197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70609660 (or 70609657 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 26054947197 in words is "twenty-six billion, fifty-four million, nine hundred forty-seven thousand, one hundred ninety-seven".