492187819369 has 2 divisors, whose sum is σ = 492187819370. Its totient is φ = 492187819368.

The previous prime is 492187819363. The next prime is 492187819399. The reversal of 492187819369 is 963918781294.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 386247334144 + 105940485225 = 621488^2 + 325485^2 .

It is a cyclic number.

It is not a de Polignac number, because 492187819369 - 2¹⁷ = 492187688297 is a prime.

It is a super-2 number, since 2×492187819369² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (492187819363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246093909684 + 246093909685.

It is an arithmetic number, because the mean of its divisors is an integer number (246093909685).

Almost surely, 2^492187819369 is an apocalyptic number.

It is an amenable number.

492187819369 is a deficient number, since it is larger than the sum of its proper divisors (1).

492187819369 is an equidigital number, since it uses as much as digits as its factorization.

492187819369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47029248, while the sum is 67.

The spelling of 492187819369 in words is "four hundred ninety-two billion, one hundred eighty-seven million, eight hundred nineteen thousand, three hundred sixty-nine".