489677249543 has 2 divisors, whose sum is σ = 489677249544. Its totient is φ = 489677249542.

The previous prime is 489677249507. The next prime is 489677249557. The reversal of 489677249543 is 345942776984.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 489677249543 - 2²⁰ = 489676200967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489677249443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244838624771 + 244838624772.

It is an arithmetic number, because the mean of its divisors is an integer number (244838624772).

Almost surely, 2^489677249543 is an apocalyptic number.

489677249543 is a deficient number, since it is larger than the sum of its proper divisors (1).

489677249543 is an equidigital number, since it uses as much as digits as its factorization.

489677249543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 365783040, while the sum is 68.

The spelling of 489677249543 in words is "four hundred eighty-nine billion, six hundred seventy-seven million, two hundred forty-nine thousand, five hundred forty-three".