136906308871 has 2 divisors, whose sum is σ = 136906308872. Its totient is φ = 136906308870.

The previous prime is 136906308863. The next prime is 136906308881. The reversal of 136906308871 is 178803609631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136906308871 - 2³ = 136906308863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136906308881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68453154435 + 68453154436.

It is an arithmetic number, because the mean of its divisors is an integer number (68453154436).

Almost surely, 2^136906308871 is an apocalyptic number.

136906308871 is a deficient number, since it is larger than the sum of its proper divisors (1).

136906308871 is an equidigital number, since it uses as much as digits as its factorization.

136906308871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 136906308871 in words is "one hundred thirty-six billion, nine hundred six million, three hundred eight thousand, eight hundred seventy-one".