136356578787673 has 2 divisors, whose sum is σ = 136356578787674. Its totient is φ = 136356578787672.

The previous prime is 136356578787631. The next prime is 136356578787701. The reversal of 136356578787673 is 376787875653631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90734159600704 + 45622419186969 = 9525448^2 + 6754437^2 .

It is a cyclic number.

It is not a de Polignac number, because 136356578787673 - 2¹³ = 136356578779481 is a prime.

It is not a weakly prime, because it can be changed into another prime (136356578787623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68178289393836 + 68178289393837.

It is an arithmetic number, because the mean of its divisors is an integer number (68178289393837).

Almost surely, 2^{136356578787673} is an apocalyptic number.

It is an amenable number.

136356578787673 is a deficient number, since it is larger than the sum of its proper divisors (1).

136356578787673 is an equidigital number, since it uses as much as digits as its factorization.

136356578787673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22404211200, while the sum is 82.

The spelling of 136356578787673 in words is "one hundred thirty-six trillion, three hundred fifty-six billion, five hundred seventy-eight million, seven hundred eighty-seven thousand, six hundred seventy-three".