5195421000 has 1280 divisors, whose sum is σ = 24463296000. Its totient is φ = 1016064000.

The previous prime is 5195420947. The next prime is 5195421019. The reversal of 5195421000 is 1245915.

5195421000 is a `hidden beast` number, since 5 + 19 + 542 + 100 + 0 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 305612992 + ... + 305613008.

It is an arithmetic number, because the mean of its divisors is an integer number (19111950).

Almost surely, 2^5195421000 is an apocalyptic number.

5195421000 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 5195421000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12231648000).

5195421000 is an abundant number, since it is smaller than the sum of its proper divisors (19267875000).

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

5195421000 is a wasteful number, since it uses less digits than its factorization.

5195421000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 5195421000 is about 72079.2688642164. The cubic root of 5195421000 is about 1731.9695345657.

Adding to 5195421000 its reverse (1245915), we get a palindrome (5196666915).

The spelling of 5195421000 in words is "five billion, one hundred ninety-five million, four hundred twenty-one thousand".