6419953512 has 128 divisors (see below), whose sum is σ = 20878099200. Its totient is φ = 1789516800.

The previous prime is 6419953469. The next prime is 6419953513. The reversal of 6419953512 is 2153599146.

6419953512 is a `hidden beast` number, since 6 + 41 + 9 + 95 + 3 + 512 = 666.

It is a super-2 number, since 2×6419953512² = 82431606192482268288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6419953513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10212 + ... + 113772.

It is an arithmetic number, because the mean of its divisors is an integer number (163110150).

Almost surely, 2^6419953512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6419953512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10439049600).

6419953512 is an abundant number, since it is smaller than the sum of its proper divisors (14458145688).

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

6419953512 is a wasteful number, since it uses less digits than its factorization.

6419953512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103624 (or 103614 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 6419953512 is about 80124.6123984385. The cubic root of 6419953512 is about 1858.5630316557.

It can be divided in two parts, 64199 and 53512, that added together give a palindrome (117711).

The spelling of 6419953512 in words is "six billion, four hundred nineteen million, nine hundred fifty-three thousand, five hundred twelve".