136959637865 has 16 divisors (see below), whose sum is σ = 167062598976. Its totient is φ = 107760715200.

The previous prime is 136959637861. The next prime is 136959637873. The reversal of 136959637865 is 568736959631.

It is not a de Polignac number, because 136959637865 - 2² = 136959637861 is a prime.

It is a super-2 number, since 2×136959637865² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136959637795 and 136959637804.

It is not an unprimeable number, because it can be changed into a prime (136959637861) 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 in 15 ways as a sum of consecutive naturals, for example, 4536470 + ... + 4566560.

It is an arithmetic number, because the mean of its divisors is an integer number (10441412436).

Almost surely, 2^136959637865 is an apocalyptic number.

It is an amenable number.

136959637865 is a deficient number, since it is larger than the sum of its proper divisors (30102961111).

136959637865 is a wasteful number, since it uses less digits than its factorization.

136959637865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45080.

The product of its digits is 220449600, while the sum is 68.

The spelling of 136959637865 in words is "one hundred thirty-six billion, nine hundred fifty-nine million, six hundred thirty-seven thousand, eight hundred sixty-five".