4493903819953 has 2 divisors, whose sum is σ = 4493903819954. Its totient is φ = 4493903819952.

The previous prime is 4493903819917. The next prime is 4493903819969. The reversal of 4493903819953 is 3599183093944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3826452401424 + 667451418529 = 1956132^2 + 816977^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4493903819953 is a prime.

It is not a weakly prime, because it can be changed into another prime (4493903819903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2246951909976 + 2246951909977.

It is an arithmetic number, because the mean of its divisors is an integer number (2246951909977).

Almost surely, 2^{4493903819953} is an apocalyptic number.

It is an amenable number.

4493903819953 is a deficient number, since it is larger than the sum of its proper divisors (1).

4493903819953 is an equidigital number, since it uses as much as digits as its factorization.

4493903819953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113374080, while the sum is 67.

The spelling of 4493903819953 in words is "four trillion, four hundred ninety-three billion, nine hundred three million, eight hundred nineteen thousand, nine hundred fifty-three".