6463890970 has 8 divisors (see below), whose sum is σ = 11635003764. Its totient is φ = 2585556384.

The previous prime is 6463890931. The next prime is 6463890989. The reversal of 6463890970 is 790983646.

It can be written as a sum of positive squares in 2 ways, for example, as 6443433441 + 20457529 = 80271^2 + 4523^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323194539 + ... + 323194558.

Almost surely, 2^6463890970 is an apocalyptic number.

6463890970 is a deficient number, since it is larger than the sum of its proper divisors (5171112794).

6463890970 is a wasteful number, since it uses less digits than its factorization.

6463890970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646389104.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 6463890970 is about 80398.3269104526. The cubic root of 6463890970 is about 1862.7933295943.

The spelling of 6463890970 in words is "six billion, four hundred sixty-three million, eight hundred ninety thousand, nine hundred seventy".