4812768638463 has 4 divisors (see below), whose sum is σ = 6417024851288. Its totient is φ = 3208512425640.

The previous prime is 4812768638423. The next prime is 4812768638497. The reversal of 4812768638463 is 3648368672184.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4812768638463 - 2⁶ = 4812768638399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4812768638394 and 4812768638403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4812768638423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802128106408 + ... + 802128106413.

It is an arithmetic number, because the mean of its divisors is an integer number (1604256212822).

Almost surely, 2^{4812768638463} is an apocalyptic number.

4812768638463 is a deficient number, since it is larger than the sum of its proper divisors (1604256212825).

4812768638463 is a wasteful number, since it uses less digits than its factorization.

4812768638463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604256212824.

The product of its digits is 222953472, while the sum is 66.

The spelling of 4812768638463 in words is "four trillion, eight hundred twelve billion, seven hundred sixty-eight million, six hundred thirty-eight thousand, four hundred sixty-three".