5121380000 has 120 divisors (see below), whose sum is σ = 13745350080. Its totient is φ = 1862240000.

The previous prime is 5121379997. The next prime is 5121380021. The reversal of 5121380000 is 831215.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 208361 + ... + 231639.

It is an arithmetic number, because the mean of its divisors is an integer number (114544584).

Almost surely, 2^5121380000 is an apocalyptic number.

5121380000 is a gapful number since it is divisible by the number (50) 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 5121380000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6872675040).

5121380000 is an abundant number, since it is smaller than the sum of its proper divisors (8623970080).

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

5121380000 is a wasteful number, since it uses less digits than its factorization.

5121380000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23320 (or 23297 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 5121380000 is about 71563.8176734584. The cubic root of 5121380000 is about 1723.7025881086.

The spelling of 5121380000 in words is "five billion, one hundred twenty-one million, three hundred eighty thousand".