498811638684 has 12 divisors (see below), whose sum is σ = 1163893823624. Its totient is φ = 166270546224.

The previous prime is 498811638601. The next prime is 498811638697. The reversal of 498811638684 is 486836118894.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20783818267 + ... + 20783818290.

Almost surely, 2^498811638684 is an apocalyptic number.

It is an amenable number.

498811638684 is an abundant number, since it is smaller than the sum of its proper divisors (665082184940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

498811638684 is a wasteful number, since it uses less digits than its factorization.

498811638684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41567636564 (or 41567636562 counting only the distinct ones).

The product of its digits is 63700992, while the sum is 66.

The spelling of 498811638684 in words is "four hundred ninety-eight billion, eight hundred eleven million, six hundred thirty-eight thousand, six hundred eighty-four".