5185396784 has 40 divisors (see below), whose sum is σ = 10392572928. Its totient is φ = 2503794240.

The previous prime is 5185396757. The next prime is 5185396793. The reversal of 5185396784 is 4876935815.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230819 + ... + 252285.

Almost surely, 2^5185396784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5185396784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5196286464).

5185396784 is an abundant number, since it is smaller than the sum of its proper divisors (5207176144).

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

5185396784 is a wasteful number, since it uses less digits than its factorization.

5185396784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21993 (or 21987 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 56.

The square root of 5185396784 is about 72009.6992355891. The cubic root of 5185396784 is about 1730.8549110834.

The spelling of 5185396784 in words is "five billion, one hundred eighty-five million, three hundred ninety-six thousand, seven hundred eighty-four".