499999500040 has 64 divisors (see below), whose sum is σ = 1184328936000. Its totient is φ = 189454360320.

The previous prime is 499999499969. The next prime is 499999500041. The reversal of 499999500040 is 40005999994.

It is not an unprimeable number, because it can be changed into a prime (499999500041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9175675 + ... + 9230005.

It is an arithmetic number, because the mean of its divisors is an integer number (18505139625).

Almost surely, 2^499999500040 is an apocalyptic number.

499999500040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

499999500040 is an abundant number, since it is smaller than the sum of its proper divisors (684329435960).

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

499999500040 is a wasteful number, since it uses less digits than its factorization.

499999500040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66470 (or 66466 counting only the distinct ones).

The product of its (nonzero) digits is 4723920, while the sum is 58.

The spelling of 499999500040 in words is "four hundred ninety-nine billion, nine hundred ninety-nine million, five hundred thousand, forty".