4912637303809 has 9 divisors (see below), whose sum is σ = 4938140040771. Its totient is φ = 4887265635000.

The previous prime is 4912637303803. The next prime is 4912637303813. The reversal of 4912637303809 is 9083037362194.

The square root of 4912637303809 is 2216447.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4813394663025 + 99242640784 = 2193945^2 + 315028^2 .

It is not a de Polignac number, because 4912637303809 - 2¹⁹ = 4912636779521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4912637303809.

It is not an unprimeable number, because it can be changed into a prime (4912637303803) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 436634434 + ... + 436645684.

Almost surely, 2^{4912637303809} is an apocalyptic number.

4912637303809 is the 2216447-th square number.

4912637303809 is the 1108224-th centered octagonal number.

It is an amenable number.

4912637303809 is a deficient number, since it is larger than the sum of its proper divisors (25502736962).

4912637303809 is an frugal number, since it uses more digits than its factorization.

4912637303809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22896 (or 11448 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 55.

The spelling of 4912637303809 in words is "four trillion, nine hundred twelve billion, six hundred thirty-seven million, three hundred three thousand, eight hundred nine".