136964544421 has 8 divisors (see below), whose sum is σ = 139884522624. Its totient is φ = 134044809600.

The previous prime is 136964544361. The next prime is 136964544473. The reversal of 136964544421 is 124445469631.

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 136964544421 - 2¹¹ = 136964542373 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 (136964544481) 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 7 ways as a sum of consecutive naturals, for example, 1497226 + ... + 1586068.

It is an arithmetic number, because the mean of its divisors is an integer number (17485565328).

Almost surely, 2^136964544421 is an apocalyptic number.

It is an amenable number.

136964544421 is a deficient number, since it is larger than the sum of its proper divisors (2919978203).

136964544421 is an equidigital number, since it uses as much as digits as its factorization.

136964544421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121691.

The product of its digits is 2488320, while the sum is 49.

The spelling of 136964544421 in words is "one hundred thirty-six billion, nine hundred sixty-four million, five hundred forty-four thousand, four hundred twenty-one".