6394382512 has 80 divisors (see below), whose sum is σ = 14921544960. Its totient is φ = 2593195776.

The previous prime is 6394382479. The next prime is 6394382543. The reversal of 6394382512 is 2152834936.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3239958 + ... + 3241930.

It is an arithmetic number, because the mean of its divisors is an integer number (186519312).

Almost surely, 2^6394382512 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 6394382512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7460772480).

6394382512 is an abundant number, since it is smaller than the sum of its proper divisors (8527162448).

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

6394382512 is a wasteful number, since it uses less digits than its factorization.

6394382512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3530 (or 3524 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 6394382512 is about 79964.8829924736. The cubic root of 6394382512 is about 1856.0921646538.

The spelling of 6394382512 in words is "six billion, three hundred ninety-four million, three hundred eighty-two thousand, five hundred twelve".