136877812427 has 2 divisors, whose sum is σ = 136877812428. Its totient is φ = 136877812426.

The previous prime is 136877812403. The next prime is 136877812439. The reversal of 136877812427 is 724218778631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136877812427 - 2¹⁴ = 136877796043 is a prime.

It is not a weakly prime, because it can be changed into another prime (136877815427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68438906213 + 68438906214.

It is an arithmetic number, because the mean of its divisors is an integer number (68438906214).

Almost surely, 2^136877812427 is an apocalyptic number.

136877812427 is a deficient number, since it is larger than the sum of its proper divisors (1).

136877812427 is an equidigital number, since it uses as much as digits as its factorization.

136877812427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6322176, while the sum is 56.

The spelling of 136877812427 in words is "one hundred thirty-six billion, eight hundred seventy-seven million, eight hundred twelve thousand, four hundred twenty-seven".