6398820970 has 16 divisors (see below), whose sum is σ = 11785736160. Its totient is φ = 2500004304.

The previous prime is 6398820941. The next prime is 6398821001. The reversal of 6398820970 is 790288936.

It is a super-2 number, since 2×6398820970² = 81889819612223481800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 7440060 + ... + 7440919.

It is an arithmetic number, because the mean of its divisors is an integer number (736608510).

Almost surely, 2^6398820970 is an apocalyptic number.

6398820970 is a deficient number, since it is larger than the sum of its proper divisors (5386915190).

6398820970 is a wasteful number, since it uses less digits than its factorization.

6398820970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14881029.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 6398820970 is about 79992.6307230860. The cubic root of 6398820970 is about 1856.5215145165.

The spelling of 6398820970 in words is "six billion, three hundred ninety-eight million, eight hundred twenty thousand, nine hundred seventy".