136518594844642 has 8 divisors (see below), whose sum is σ = 204799966013916. Its totient is φ = 68251939506672.

The previous prime is 136518594844633. The next prime is 136518594844691. The reversal of 136518594844642 is 246448495815631.

It can be written as a sum of positive squares in 2 ways, for example, as 122701457630761 + 13817137213881 = 11077069^2 + 3717141^2 .

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

It is a super-2 number, since 2×136518594844642² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3678934633 + ... + 3678971740.

Almost surely, 2^{136518594844642} is an apocalyptic number.

136518594844642 is a deficient number, since it is larger than the sum of its proper divisors (68281371169274).

136518594844642 is an equidigital number, since it uses as much as digits as its factorization.

136518594844642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7357915652.

The product of its digits is 796262400, while the sum is 70.

The spelling of 136518594844642 in words is "one hundred thirty-six trillion, five hundred eighteen billion, five hundred ninety-four million, eight hundred forty-four thousand, six hundred forty-two".