26149086872 has 32 divisors (see below), whose sum is σ = 49202341920. Its totient is φ = 13028547840.

The previous prime is 26149086871. The next prime is 26149086881. The reversal of 26149086872 is 27868094162.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26149086871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2744597 + ... + 2754107.

It is an arithmetic number, because the mean of its divisors is an integer number (1537573185).

Almost surely, 2^26149086872 is an apocalyptic number.

It is an amenable number.

26149086872 is a deficient number, since it is larger than the sum of its proper divisors (23053255048).

26149086872 is a wasteful number, since it uses less digits than its factorization.

26149086872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10691 (or 10687 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 26149086872 in words is "twenty-six billion, one hundred forty-nine million, eighty-six thousand, eight hundred seventy-two".