136426131071999 has 16 divisors (see below), whose sum is σ = 144676656633600. Its totient is φ = 128200721894784.

The previous prime is 136426131071969. The next prime is 136426131072013. The reversal of 136426131071999 is 999170131624631.

It is a cyclic number.

It is not a de Polignac number, because 136426131071999 - 2²⁰ = 136426130023423 is a prime.

It is a super-2 number, since 2×136426131071999² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136426131071969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65954912 + ... + 67991930.

It is an arithmetic number, because the mean of its divisors is an integer number (9042291039600).

Almost surely, 2^{136426131071999} is an apocalyptic number.

136426131071999 is a deficient number, since it is larger than the sum of its proper divisors (8250525561601).

136426131071999 is a wasteful number, since it uses less digits than its factorization.

136426131071999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043182.

The product of its (nonzero) digits is 13226976, while the sum is 62.

The spelling of 136426131071999 in words is "one hundred thirty-six trillion, four hundred twenty-six billion, one hundred thirty-one million, seventy-one thousand, nine hundred ninety-nine".