5185220812 has 12 divisors (see below), whose sum is σ = 9176093640. Its totient is φ = 2563479776.

The previous prime is 5185220771. The next prime is 5185220857. The reversal of 5185220812 is 2180225815.

It is a happy 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, 7282258 + ... + 7282969.

It is an arithmetic number, because the mean of its divisors is an integer number (764674470).

Almost surely, 2^5185220812 is an apocalyptic number.

It is an amenable number.

5185220812 is a deficient number, since it is larger than the sum of its proper divisors (3990872828).

5185220812 is a wasteful number, since it uses less digits than its factorization.

5185220812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14565320 (or 14565318 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 5185220812 is about 72008.4773620440. The cubic root of 5185220812 is about 1730.8353313895.

The spelling of 5185220812 in words is "five billion, one hundred eighty-five million, two hundred twenty thousand, eight hundred twelve".