499999974506915 has 4 divisors (see below), whose sum is σ = 599999969408304. Its totient is φ = 399999979605528.

The previous prime is 499999974506881. The next prime is 499999974507001. The reversal of 499999974506915 is 519605479999994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499999974506915 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49999997450687 + ... + 49999997450696.

It is an arithmetic number, because the mean of its divisors is an integer number (149999992352076).

Almost surely, 2^{499999974506915} is an apocalyptic number.

499999974506915 is a deficient number, since it is larger than the sum of its proper divisors (99999994901389).

499999974506915 is an equidigital number, since it uses as much as digits as its factorization.

499999974506915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99999994901388.

The product of its (nonzero) digits is 80353879200, while the sum is 95.

The spelling of 499999974506915 in words is "four hundred ninety-nine trillion, nine hundred ninety-nine billion, nine hundred seventy-four million, five hundred six thousand, nine hundred fifteen".