499823901816 has 64 divisors (see below), whose sum is σ = 1325263749120. Its totient is φ = 156751605120.

The previous prime is 499823901769. The next prime is 499823901827. The reversal of 499823901816 is 618109328994.

It is a self number, because there is not a number n which added to its sum of digits gives 499823901816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7388280 + ... + 7455623.

It is an arithmetic number, because the mean of its divisors is an integer number (20707246080).

Almost surely, 2^499823901816 is an apocalyptic number.

499823901816 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

499823901816 is an abundant number, since it is smaller than the sum of its proper divisors (825439847304).

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

499823901816 is a wasteful number, since it uses less digits than its factorization.

499823901816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14843996 (or 14843992 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 60.

The spelling of 499823901816 in words is "four hundred ninety-nine billion, eight hundred twenty-three million, nine hundred one thousand, eight hundred sixteen".