498588144638861 has 4 divisors (see below), whose sum is σ = 498588236268192. Its totient is φ = 498588053009532.

The previous prime is 498588144638821. The next prime is 498588144638893. The reversal of 498588144638861 is 168836441885894.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 498588144638861 - 2⁶ = 498588144638797 is a prime.

It is a super-2 number, since 2×498588144638861² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 498588144638861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498588144638821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37100081 + ... + 48719526.

It is an arithmetic number, because the mean of its divisors is an integer number (124647059067048).

Almost surely, 2^{498588144638861} is an apocalyptic number.

It is an amenable number.

498588144638861 is a deficient number, since it is larger than the sum of its proper divisors (91629331).

498588144638861 is an equidigital number, since it uses as much as digits as its factorization.

498588144638861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91629330.

The product of its digits is 10192158720, while the sum is 83.

The spelling of 498588144638861 in words is "four hundred ninety-eight trillion, five hundred eighty-eight billion, one hundred forty-four million, six hundred thirty-eight thousand, eight hundred sixty-one".