136047740669 has 2 divisors, whose sum is σ = 136047740670. Its totient is φ = 136047740668.

The previous prime is 136047740651. The next prime is 136047740723. The reversal of 136047740669 is 966047740631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121776571225 + 14271169444 = 348965^2 + 119462^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136047740669 is a prime.

It is a super-2 number, since 2×136047740669² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 136047740669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136047700669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68023870334 + 68023870335.

It is an arithmetic number, because the mean of its divisors is an integer number (68023870335).

Almost surely, 2^136047740669 is an apocalyptic number.

It is an amenable number.

136047740669 is a deficient number, since it is larger than the sum of its proper divisors (1).

136047740669 is an equidigital number, since it uses as much as digits as its factorization.

136047740669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 53.

The spelling of 136047740669 in words is "one hundred thirty-six billion, forty-seven million, seven hundred forty thousand, six hundred sixty-nine".