6446497372 has 12 divisors (see below), whose sum is σ = 12892994800. Its totient is φ = 2762784576.

The previous prime is 6446497361. The next prime is 6446497397. The reversal of 6446497372 is 2737946446.

6446497372 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115115997 + ... + 115116052.

Almost surely, 2^6446497372 is an apocalyptic number.

It is an amenable number.

6446497372 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6446497372 is a wasteful number, since it uses less digits than its factorization.

6446497372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230232060 (or 230232058 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 52.

The square root of 6446497372 is about 80290.0826503498. The cubic root of 6446497372 is about 1861.1209734138.

The spelling of 6446497372 in words is "six billion, four hundred forty-six million, four hundred ninety-seven thousand, three hundred seventy-two".