499192489723456 has 21 divisors (see below), whose sum is σ = 990585451484139. Its totient is φ = 249596155491264.

The previous prime is 499192489723399. The next prime is 499192489723457. The reversal of 499192489723456 is 654327984291994.

The square root of 499192489723456 is 22342616.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 499192489723456.

It is not an unprimeable number, because it can be changed into a prime (499192489723457) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 177344515 + ... + 180137341.

It is an arithmetic number, because the mean of its divisors is an integer number (47170735784959).

Almost surely, 2^{499192489723456} is an apocalyptic number.

499192489723456 is the 22342616-th square number.

It is an amenable number.

499192489723456 is a deficient number, since it is larger than the sum of its proper divisors (491392961760683).

499192489723456 is an frugal number, since it uses more digits than its factorization.

499192489723456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5585666 (or 2792829 counting only the distinct ones).

The product of its digits is 8465264640, while the sum is 82.

The spelling of 499192489723456 in words is "four hundred ninety-nine trillion, one hundred ninety-two billion, four hundred eighty-nine million, seven hundred twenty-three thousand, four hundred fifty-six".