136747776959 has 2 divisors, whose sum is σ = 136747776960. Its totient is φ = 136747776958.

The previous prime is 136747776947. The next prime is 136747776973. The reversal of 136747776959 is 959677747631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136747776959 - 2⁸ = 136747776703 is a prime.

It is a super-2 number, since 2×136747776959² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136747776892 and 136747776901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136747776989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68373888479 + 68373888480.

It is an arithmetic number, because the mean of its divisors is an integer number (68373888480).

Almost surely, 2^136747776959 is an apocalyptic number.

136747776959 is a deficient number, since it is larger than the sum of its proper divisors (1).

136747776959 is an equidigital number, since it uses as much as digits as its factorization.

136747776959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420078960, while the sum is 71.

The spelling of 136747776959 in words is "one hundred thirty-six billion, seven hundred forty-seven million, seven hundred seventy-six thousand, nine hundred fifty-nine".