64343519896 has 32 divisors (see below), whose sum is σ = 125371728000. Its totient is φ = 30924990720.

The previous prime is 64343519869. The next prime is 64343519897. The reversal of 64343519896 is 69891534346.

It is a self number, because there is not a number n which added to its sum of digits gives 64343519896.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64343519897) 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 7 ways as a sum of consecutive naturals, for example, 833685 + ... + 907588.

It is an arithmetic number, because the mean of its divisors is an integer number (3917866500).

Almost surely, 2^64343519896 is an apocalyptic number.

It is an amenable number.

64343519896 is a deficient number, since it is larger than the sum of its proper divisors (61028208104).

64343519896 is a wasteful number, since it uses less digits than its factorization.

64343519896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741459 (or 1741455 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 58.

The spelling of 64343519896 in words is "sixty-four billion, three hundred forty-three million, five hundred nineteen thousand, eight hundred ninety-six".