136511686741 has 8 divisors (see below), whose sum is σ = 136918267704. Its totient is φ = 136105421760.

The previous prime is 136511686697. The next prime is 136511686771. The reversal of 136511686741 is 147686115631.

It can be written as a sum of positive squares in 4 ways, for example, as 107893197841 + 28618488900 = 328471^2 + 169170^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136511686741 - 2³¹ = 134364203093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136511686771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800871 + ... + 956251.

It is an arithmetic number, because the mean of its divisors is an integer number (17114783463).

Almost surely, 2^136511686741 is an apocalyptic number.

It is an amenable number.

136511686741 is a deficient number, since it is larger than the sum of its proper divisors (406580963).

136511686741 is a wasteful number, since it uses less digits than its factorization.

136511686741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157991.

The product of its digits is 725760, while the sum is 49.

The spelling of 136511686741 in words is "one hundred thirty-six billion, five hundred eleven million, six hundred eighty-six thousand, seven hundred forty-one".