5191212800 has 54 divisors (see below), whose sum is σ = 12849078648. Its totient is φ = 2076482560.

The previous prime is 5191212791. The next prime is 5191212821. The reversal of 5191212800 is 82121915.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 399164 + ... + 411963.

Almost surely, 2^5191212800 is an apocalyptic number.

5191212800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5191212800 is an abundant number, since it is smaller than the sum of its proper divisors (7657865848).

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

5191212800 is an equidigital number, since it uses as much as digits as its factorization.

5191212800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811153 (or 811134 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 5191212800 is about 72050.0714781047. The cubic root of 5191212800 is about 1731.5017865926.

The spelling of 5191212800 in words is "five billion, one hundred ninety-one million, two hundred twelve thousand, eight hundred".