4644636247312 has 40 divisors (see below), whose sum is σ = 9060664134200. Its totient is φ = 2306440396800.

The previous prime is 4644636247291. The next prime is 4644636247331. The reversal of 4644636247312 is 2137426364464.

It can be written as a sum of positive squares in 4 ways, for example, as 1743255464976 + 2901380782336 = 1320324^2 + 1703344^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4644636247312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604564 + ... + 3107212.

It is an arithmetic number, because the mean of its divisors is an integer number (226516603355).

Almost surely, 2^{4644636247312} is an apocalyptic number.

It is an amenable number.

4644636247312 is a deficient number, since it is larger than the sum of its proper divisors (4416027886888).

4644636247312 is a wasteful number, since it uses less digits than its factorization.

4644636247312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503451 (or 2503445 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 52.

The spelling of 4644636247312 in words is "four trillion, six hundred forty-four billion, six hundred thirty-six million, two hundred forty-seven thousand, three hundred twelve".