136642712464 has 20 divisors (see below), whose sum is σ = 267719923980. Its totient is φ = 67553699840.

The previous prime is 136642712449. The next prime is 136642712491. The reversal of 136642712464 is 464217246631.

It can be written as a sum of positive squares in 2 ways, for example, as 29478142864 + 107164569600 = 171692^2 + 327360^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47977057 + ... + 47979904.

It is an arithmetic number, because the mean of its divisors is an integer number (13385996199).

Almost surely, 2^136642712464 is an apocalyptic number.

It is an amenable number.

136642712464 is a deficient number, since it is larger than the sum of its proper divisors (131077211516).

136642712464 is an equidigital number, since it uses as much as digits as its factorization.

136642712464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95957058 (or 95957052 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 46.

The spelling of 136642712464 in words is "one hundred thirty-six billion, six hundred forty-two million, seven hundred twelve thousand, four hundred sixty-four".