6378432896 has 64 divisors (see below), whose sum is σ = 13877773200. Its totient is φ = 2896035840.

The previous prime is 6378432881. The next prime is 6378432911. The reversal of 6378432896 is 6982348736.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6378432881) and next prime (6378432911).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1621460 + ... + 1625388.

Almost surely, 2^6378432896 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 6378432896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6938886600).

6378432896 is an abundant number, since it is smaller than the sum of its proper divisors (7499340304).

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

6378432896 is a wasteful number, since it uses less digits than its factorization.

6378432896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5107 (or 5095 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 56.

The square root of 6378432896 is about 79865.0918486919. The cubic root of 6378432896 is about 1854.5476524574.

The spelling of 6378432896 in words is "six billion, three hundred seventy-eight million, four hundred thirty-two thousand, eight hundred ninety-six".