6444197432 has 16 divisors (see below), whose sum is σ = 12145478640. Its totient is φ = 3205403136.

The previous prime is 6444197423. The next prime is 6444197449. The reversal of 6444197432 is 2347914446.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2085308 + ... + 2088395.

It is an arithmetic number, because the mean of its divisors is an integer number (759092415).

Almost surely, 2^6444197432 is an apocalyptic number.

It is an amenable number.

6444197432 is a deficient number, since it is larger than the sum of its proper divisors (5701281208).

6444197432 is a wasteful number, since it uses less digits than its factorization.

6444197432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173902 (or 4173898 counting only the distinct ones).

The product of its digits is 580608, while the sum is 44.

The square root of 6444197432 is about 80275.7586821825. The cubic root of 6444197432 is about 1860.8996141506.

The spelling of 6444197432 in words is "six billion, four hundred forty-four million, one hundred ninety-seven thousand, four hundred thirty-two".