136426131071969 has 2 divisors, whose sum is σ = 136426131071970. Its totient is φ = 136426131071968.

The previous prime is 136426131071953. The next prime is 136426131072013. The reversal of 136426131071969 is 969170131624631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97640326841344 + 38785804230625 = 9881312^2 + 6227825^2 .

It is a cyclic number.

It is not a de Polignac number, because 136426131071969 - 2⁴ = 136426131071953 is a prime.

It is a super-2 number, since 2×136426131071969² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (136426131071369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68213065535984 + 68213065535985.

It is an arithmetic number, because the mean of its divisors is an integer number (68213065535985).

Almost surely, 2^{136426131071969} is an apocalyptic number.

It is an amenable number.

136426131071969 is a deficient number, since it is larger than the sum of its proper divisors (1).

136426131071969 is an equidigital number, since it uses as much as digits as its factorization.

136426131071969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8817984, while the sum is 59.

The spelling of 136426131071969 in words is "one hundred thirty-six trillion, four hundred twenty-six billion, one hundred thirty-one million, seventy-one thousand, nine hundred sixty-nine".