6463864038 has 16 divisors (see below), whose sum is σ = 12928608000. Its totient is φ = 2154474696.

The previous prime is 6463864037. The next prime is 6463864039. The reversal of 6463864038 is 8304683646.

It is an interprime number because it is at equal distance from previous prime (6463864037) and next prime (6463864039).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6463864037) 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, 95463 + ... + 148461.

It is an arithmetic number, because the mean of its divisors is an integer number (808038000).

Almost surely, 2^6463864038 is an apocalyptic number.

6463864038 is an abundant number, since it is smaller than the sum of its proper divisors (6464743962).

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

6463864038 is a wasteful number, since it uses less digits than its factorization.

6463864038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73331.

The product of its (nonzero) digits is 1990656, while the sum is 48.

The square root of 6463864038 is about 80398.1594192305. The cubic root of 6463864038 is about 1862.7907424622.

The spelling of 6463864038 in words is "six billion, four hundred sixty-three million, eight hundred sixty-four thousand, thirty-eight".