136911633088649 has 2 divisors, whose sum is σ = 136911633088650. Its totient is φ = 136911633088648.

The previous prime is 136911633088619. The next prime is 136911633088777. The reversal of 136911633088649 is 946880336119631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84595054768249 + 52316578320400 = 9197557^2 + 7233020^2 .

It is a cyclic number.

It is not a de Polignac number, because 136911633088649 - 2⁸ = 136911633088393 is a prime.

It is not a weakly prime, because it can be changed into another prime (136911633088609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68455816544324 + 68455816544325.

It is an arithmetic number, because the mean of its divisors is an integer number (68455816544325).

Almost surely, 2^{136911633088649} is an apocalyptic number.

It is an amenable number.

136911633088649 is a deficient number, since it is larger than the sum of its proper divisors (1).

136911633088649 is an equidigital number, since it uses as much as digits as its factorization.

136911633088649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120932352, while the sum is 68.

The spelling of 136911633088649 in words is "one hundred thirty-six trillion, nine hundred eleven billion, six hundred thirty-three million, eighty-eight thousand, six hundred forty-nine".