498687864439 has 2 divisors, whose sum is σ = 498687864440. Its totient is φ = 498687864438.

The previous prime is 498687864407. The next prime is 498687864481. The reversal of 498687864439 is 934468786894.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 498687864439 - 2⁵ = 498687864407 is a prime.

It is a super-2 number, since 2×498687864439² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498687861439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249343932219 + 249343932220.

It is an arithmetic number, because the mean of its divisors is an integer number (249343932220).

Almost surely, 2^498687864439 is an apocalyptic number.

498687864439 is a deficient number, since it is larger than the sum of its proper divisors (1).

498687864439 is an equidigital number, since it uses as much as digits as its factorization.

498687864439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2006581248, while the sum is 76.

The spelling of 498687864439 in words is "four hundred ninety-eight billion, six hundred eighty-seven million, eight hundred sixty-four thousand, four hundred thirty-nine".