5191200000 has 648 divisors, whose sum is σ = 21588368256. Its totient is φ = 1175040000.

The previous prime is 5191199977. The next prime is 5191200043. The reversal of 5191200000 is 21915.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 50399949 + ... + 50400051.

Almost surely, 2^5191200000 is an apocalyptic number.

5191200000 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 5191200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10794184128).

5191200000 is an abundant number, since it is smaller than the sum of its proper divisors (16397168256).

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

5191200000 is an equidigital number, since it uses as much as digits as its factorization.

5191200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 5191200000 is about 72049.9826509348. The cubic root of 5191200000 is about 1731.5003634672.

Adding to 5191200000 its reverse (21915), we get a palindrome (5191221915).

The spelling of 5191200000 in words is "five billion, one hundred ninety-one million, two hundred thousand".