612636800321 has 8 divisors (see below), whose sum is σ = 754014523584. Its totient is φ = 484723622160.

The previous prime is 612636800317. The next prime is 612636800323. The reversal of 612636800321 is 123008636216.

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 612636800321 - 2² = 612636800317 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (612636800323) 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, 3366136175 + ... + 3366136356.

It is an arithmetic number, because the mean of its divisors is an integer number (94251815448).

Almost surely, 2^612636800321 is an apocalyptic number.

It is an amenable number.

612636800321 is a deficient number, since it is larger than the sum of its proper divisors (141377723263).

612636800321 is a wasteful number, since it uses less digits than its factorization.

612636800321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6732272551.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 612636800321 in words is "six hundred twelve billion, six hundred thirty-six million, eight hundred thousand, three hundred twenty-one".