490507213393 has 2 divisors, whose sum is σ = 490507213394. Its totient is φ = 490507213392.

The previous prime is 490507213387. The next prime is 490507213433. The reversal of 490507213393 is 393312705094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 470893771089 + 19613442304 = 686217^2 + 140048^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490507213393 is a prime.

It is not a weakly prime, because it can be changed into another prime (490507213093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245253606696 + 245253606697.

It is an arithmetic number, because the mean of its divisors is an integer number (245253606697).

Almost surely, 2^490507213393 is an apocalyptic number.

It is an amenable number.

490507213393 is a deficient number, since it is larger than the sum of its proper divisors (1).

490507213393 is an equidigital number, since it uses as much as digits as its factorization.

490507213393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 46.

The spelling of 490507213393 in words is "four hundred ninety billion, five hundred seven million, two hundred thirteen thousand, three hundred ninety-three".