499328225791 has 4 divisors (see below), whose sum is σ = 499377300352. Its totient is φ = 499279151232.

The previous prime is 499328225789. The next prime is 499328225801. The reversal of 499328225791 is 197522823994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 197522823994 = 2 ⋅98761411997.

It is a cyclic number.

It is not a de Polignac number, because 499328225791 - 2¹ = 499328225789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499328225771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24522015 + ... + 24542368.

It is an arithmetic number, because the mean of its divisors is an integer number (124844325088).

Almost surely, 2^499328225791 is an apocalyptic number.

499328225791 is a deficient number, since it is larger than the sum of its proper divisors (49074561).

499328225791 is a wasteful number, since it uses less digits than its factorization.

499328225791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49074560.

The product of its digits is 19595520, while the sum is 61.

The spelling of 499328225791 in words is "four hundred ninety-nine billion, three hundred twenty-eight million, two hundred twenty-five thousand, seven hundred ninety-one".