612644424538272 has 192 divisors, whose sum is σ = 1880906909865984. Its totient is φ = 170949536916480.

The previous prime is 612644424538271. The next prime is 612644424538387. The reversal of 612644424538272 is 272835424446216.

It is not an unprimeable number, because it can be changed into a prime (612644424538271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234695622 + ... + 237291642.

It is an arithmetic number, because the mean of its divisors is an integer number (9796390155552).

Almost surely, 2^{612644424538272} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612644424538272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (940453454932992).

612644424538272 is an abundant number, since it is smaller than the sum of its proper divisors (1268262485327712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612644424538272 is a wasteful number, since it uses less digits than its factorization.

612644424538272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604251 (or 2604243 counting only the distinct ones).

The product of its digits is 123863040, while the sum is 60.

The spelling of 612644424538272 in words is "six hundred twelve trillion, six hundred forty-four billion, four hundred twenty-four million, five hundred thirty-eight thousand, two hundred seventy-two".