6404199886 has 16 divisors (see below), whose sum is σ = 10979740800. Its totient is φ = 2744379000.

The previous prime is 6404199817. The next prime is 6404199889. The reversal of 6404199886 is 6889914046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404199889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183465 + ... + 215563.

It is an arithmetic number, because the mean of its divisors is an integer number (686233800).

Almost surely, 2^6404199886 is an apocalyptic number.

6404199886 is a deficient number, since it is larger than the sum of its proper divisors (4575540914).

6404199886 is a wasteful number, since it uses less digits than its factorization.

6404199886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46359.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 6404199886 is about 80026.2449825056. The cubic root of 6404199886 is about 1857.0415726386.

The spelling of 6404199886 in words is "six billion, four hundred four million, one hundred ninety-nine thousand, eight hundred eighty-six".