6463899940747 has 8 divisors (see below), whose sum is σ = 6493015541376. Its totient is φ = 6434785496832.

The previous prime is 6463899940733. The next prime is 6463899940787. The reversal of 6463899940747 is 7470499983646.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6463899940747 is a prime.

It is a super-2 number, since 2×6463899940747² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6463899940717) 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, 12105573 + ... + 12628249.

It is an arithmetic number, because the mean of its divisors is an integer number (811626942672).

Almost surely, 2^{6463899940747} is an apocalyptic number.

6463899940747 is a deficient number, since it is larger than the sum of its proper divisors (29115600629).

6463899940747 is a wasteful number, since it uses less digits than its factorization.

6463899940747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578357.

The product of its (nonzero) digits is 1975228416, while the sum is 76.

The spelling of 6463899940747 in words is "six trillion, four hundred sixty-three billion, eight hundred ninety-nine million, nine hundred forty thousand, seven hundred forty-seven".