494294587987177 has 2 divisors, whose sum is σ = 494294587987178. Its totient is φ = 494294587987176.

The previous prime is 494294587987147. The next prime is 494294587987217. The reversal of 494294587987177 is 771789785492494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 466511790045456 + 27782797941721 = 21598884^2 + 5270939^2 .

It is a cyclic number.

It is not a de Polignac number, because 494294587987177 - 2⁴⁷ = 353557099631849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 494294587987091 and 494294587987100.

It is not a weakly prime, because it can be changed into another prime (494294587987147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247147293993588 + 247147293993589.

It is an arithmetic number, because the mean of its divisors is an integer number (247147293993589).

Almost surely, 2^{494294587987177} is an apocalyptic number.

It is an amenable number.

494294587987177 is a deficient number, since it is larger than the sum of its proper divisors (1).

494294587987177 is an equidigital number, since it uses as much as digits as its factorization.

494294587987177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71693475840, while the sum is 91.

The spelling of 494294587987177 in words is "four hundred ninety-four trillion, two hundred ninety-four billion, five hundred eighty-seven million, nine hundred eighty-seven thousand, one hundred seventy-seven".