5121445896 has 144 divisors (see below), whose sum is σ = 16984609200. Its totient is φ = 1386237888.

The previous prime is 5121445883. The next prime is 5121445943. The reversal of 5121445896 is 6985441215.

5121445896 is a `hidden beast` number, since 5 + 1 + 21 + 44 + 589 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 28831 + ... + 105233.

It is an arithmetic number, because the mean of its divisors is an integer number (117948675).

Almost surely, 2^5121445896 is an apocalyptic number.

5121445896 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5121445896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8492304600).

5121445896 is an abundant number, since it is smaller than the sum of its proper divisors (11863163304).

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

5121445896 is a wasteful number, since it uses less digits than its factorization.

5121445896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76448 (or 76434 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 5121445896 is about 71564.2780722338. The cubic root of 5121445896 is about 1723.7099809480.

The spelling of 5121445896 in words is "five billion, one hundred twenty-one million, four hundred forty-five thousand, eight hundred ninety-six".