26136000449181 has 72 divisors (see below), whose sum is σ = 44610584478720. Its totient is φ = 14698899363456.

The previous prime is 26136000449123. The next prime is 26136000449183. The reversal of 26136000449181 is 18194400063162.

26136000449181 is a `hidden beast` number, since 26 + 1 + 3 + 6 + 0 + 0 + 0 + 449 + 181 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-26136000449181 is a prime.

It is a super-2 number, since 2×26136000449181² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26136000449183) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 32966820 + ... + 33750306.

Almost surely, 2^{26136000449181} is an apocalyptic number.

26136000449181 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26136000449181 is a deficient number, since it is larger than the sum of its proper divisors (18474584029539).

26136000449181 is a wasteful number, since it uses less digits than its factorization.

26136000449181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784703 (or 784693 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 26136000449181 in words is "twenty-six trillion, one hundred thirty-six billion, four hundred forty-nine thousand, one hundred eighty-one".