4493637461 has 2 divisors, whose sum is σ = 4493637462. Its totient is φ = 4493637460.

The previous prime is 4493637437. The next prime is 4493637479. The reversal of 4493637461 is 1647363944.

4493637461 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3205258225 + 1288379236 = 56615^2 + 35894^2 .

It is a cyclic number.

It is not a de Polignac number, because 4493637461 - 2¹⁰ = 4493636437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4493637061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2246818730 + 2246818731.

It is an arithmetic number, because the mean of its divisors is an integer number (2246818731).

Almost surely, 2^4493637461 is an apocalyptic number.

It is an amenable number.

4493637461 is a deficient number, since it is larger than the sum of its proper divisors (1).

4493637461 is an equidigital number, since it uses as much as digits as its factorization.

4493637461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 47.

The square root of 4493637461 is about 67034.5989844051. The cubic root of 4493637461 is about 1650.1851596311.

The spelling of 4493637461 in words is "four billion, four hundred ninety-three million, six hundred thirty-seven thousand, four hundred sixty-one".