499999999980 has 96 divisors (see below), whose sum is σ = 1507911539904. Its totient is φ = 123059026944.

The previous prime is 499999999979. The next prime is 500000000023. The reversal of 499999999980 is 89999999994.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5789194 + ... + 5874926.

It is an arithmetic number, because the mean of its divisors is an integer number (15707411874).

Almost surely, 2^499999999980 is an apocalyptic number.

It is an amenable number.

499999999980 is an abundant number, since it is smaller than the sum of its proper divisors (1007911539924).

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

499999999980 is a wasteful number, since it uses less digits than its factorization.

499999999980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93235 (or 93233 counting only the distinct ones).

The product of its (nonzero) digits is 12397455648, while the sum is 93.

The spelling of 499999999980 in words is "four hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred eighty".