6465869191936 has 144 divisors (see below), whose sum is σ = 16133229600768. Its totient is φ = 2512589414400.

The previous prime is 6465869191907. The next prime is 6465869191937. The reversal of 6465869191936 is 6391919685646.

It is not an unprimeable number, because it can be changed into a prime (6465869191937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7121476 + ... + 7977916.

It is an arithmetic number, because the mean of its divisors is an integer number (112036316672).

Almost surely, 2^{6465869191936} 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 6465869191936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8066614800384).

6465869191936 is an abundant number, since it is smaller than the sum of its proper divisors (9667360408832).

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

6465869191936 is a wasteful number, since it uses less digits than its factorization.

6465869191936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856858 (or 856844 counting only the distinct ones).

The product of its digits is 453496320, while the sum is 73.

The spelling of 6465869191936 in words is "six trillion, four hundred sixty-five billion, eight hundred sixty-nine million, one hundred ninety-one thousand, nine hundred thirty-six".