6496447992 has 128 divisors (see below), whose sum is σ = 17177184000. Its totient is φ = 2044421120.

The previous prime is 6496447987. The next prime is 6496448011. The reversal of 6496447992 is 2997446946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11538703 + ... + 11539265.

It is an arithmetic number, because the mean of its divisors is an integer number (134196750).

Almost surely, 2^6496447992 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 6496447992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8588592000).

6496447992 is an abundant number, since it is smaller than the sum of its proper divisors (10680736008).

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

6496447992 is a wasteful number, since it uses less digits than its factorization.

6496447992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941 (or 937 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 60.

The square root of 6496447992 is about 80600.5458542310. The cubic root of 6496447992 is about 1865.9155700700.

The spelling of 6496447992 in words is "six billion, four hundred ninety-six million, four hundred forty-seven thousand, nine hundred ninety-two".