489251542139 has 2 divisors, whose sum is σ = 489251542140. Its totient is φ = 489251542138.

The previous prime is 489251542057. The next prime is 489251542147. The reversal of 489251542139 is 931245152984.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 489251542139 - 2²⁴ = 489234764923 is a prime.

It is not a weakly prime, because it can be changed into another prime (489251542159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244625771069 + 244625771070.

It is an arithmetic number, because the mean of its divisors is an integer number (244625771070).

Almost surely, 2^489251542139 is an apocalyptic number.

489251542139 is a deficient number, since it is larger than the sum of its proper divisors (1).

489251542139 is an equidigital number, since it uses as much as digits as its factorization.

489251542139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3110400, while the sum is 53.

The spelling of 489251542139 in words is "four hundred eighty-nine billion, two hundred fifty-one million, five hundred forty-two thousand, one hundred thirty-nine".