499993971804 has 60 divisors (see below), whose sum is σ = 1307298714568. Its totient is φ = 166637152800.

The previous prime is 499993971787. The next prime is 499993971809. The reversal of 499993971804 is 408179399994.

499993971804 is a `hidden beast` number, since 499 + 99 + 39 + 7 + 18 + 0 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499993971809) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1888134 + ... + 2136594.

Almost surely, 2^499993971804 is an apocalyptic number.

It is an amenable number.

499993971804 is an abundant number, since it is smaller than the sum of its proper divisors (807304742764).

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

499993971804 is a wasteful number, since it uses less digits than its factorization.

499993971804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254688 (or 254677 counting only the distinct ones).

The product of its (nonzero) digits is 158723712, while the sum is 72.

The spelling of 499993971804 in words is "four hundred ninety-nine billion, nine hundred ninety-three million, nine hundred seventy-one thousand, eight hundred four".