989419858487 has 2 divisors, whose sum is σ = 989419858488. Its totient is φ = 989419858486.

The previous prime is 989419858481. The next prime is 989419858529. The reversal of 989419858487 is 784858914989.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 989419858487 - 2⁶ = 989419858423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989419858481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494709929243 + 494709929244.

It is an arithmetic number, because the mean of its divisors is an integer number (494709929244).

Almost surely, 2^989419858487 is an apocalyptic number.

989419858487 is a deficient number, since it is larger than the sum of its proper divisors (1).

989419858487 is an equidigital number, since it uses as much as digits as its factorization.

989419858487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1672151040, while the sum is 80.

The spelling of 989419858487 in words is "nine hundred eighty-nine billion, four hundred nineteen million, eight hundred fifty-eight thousand, four hundred eighty-seven".