493180343849 has 2 divisors, whose sum is σ = 493180343850. Its totient is φ = 493180343848.

The previous prime is 493180343813. The next prime is 493180343897. The reversal of 493180343849 is 948343081394.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 493180343824 + 25 = 702268^2 + 5^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-493180343849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 493180343794 and 493180343803.

It is not a weakly prime, because it can be changed into another prime (493180346849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246590171924 + 246590171925.

It is an arithmetic number, because the mean of its divisors is an integer number (246590171925).

Almost surely, 2^493180343849 is an apocalyptic number.

It is an amenable number.

493180343849 is a deficient number, since it is larger than the sum of its proper divisors (1).

493180343849 is an equidigital number, since it uses as much as digits as its factorization.

493180343849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8957952, while the sum is 56.

The spelling of 493180343849 in words is "four hundred ninety-three billion, one hundred eighty million, three hundred forty-three thousand, eight hundred forty-nine".