6428195444 has 96 divisors (see below), whose sum is σ = 13458493440. Its totient is φ = 2654467200.

The previous prime is 6428195441. The next prime is 6428195447. The reversal of 6428195444 is 4445918246.

It is an interprime number because it is at equal distance from previous prime (6428195441) and next prime (6428195447).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6428195441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2194709 + ... + 2197635.

It is an arithmetic number, because the mean of its divisors is an integer number (140192640).

Almost surely, 2^6428195444 is an apocalyptic number.

It is an amenable number.

6428195444 is an abundant number, since it is smaller than the sum of its proper divisors (7030297996).

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

6428195444 is a wasteful number, since it uses less digits than its factorization.

6428195444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3069 (or 3067 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 47.

The square root of 6428195444 is about 80176.0278636950. The cubic root of 6428195444 is about 1859.3580322022.

The spelling of 6428195444 in words is "six billion, four hundred twenty-eight million, one hundred ninety-five thousand, four hundred forty-four".