499988000072 has 36 divisors (see below), whose sum is σ = 1030495817715. Its totient is φ = 227257272880.

The previous prime is 499988000041. The next prime is 499988000101. The reversal of 499988000072 is 270000889994.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 249994000036 + 249994000036 = 499994^2 + 499994^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=499994.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 499987999981 and 499988000017.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21988373 + ... + 22011099.

Almost surely, 2^499988000072 is an apocalyptic number.

It is an amenable number.

499988000072 is an abundant number, since it is smaller than the sum of its proper divisors (530507817643).

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

499988000072 is an frugal number, since it uses more digits than its factorization.

499988000072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45482 (or 22740 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 56.

The spelling of 499988000072 in words is "four hundred ninety-nine billion, nine hundred eighty-eight million, seventy-two", and thus it is an aban number.