63828688643 has 2 divisors, whose sum is σ = 63828688644. Its totient is φ = 63828688642.

The previous prime is 63828688633. The next prime is 63828688657. The reversal of 63828688643 is 34688682836.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63828688643 - 2⁸ = 63828688387 is a prime.

It is not a weakly prime, because it can be changed into another prime (63828688633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31914344321 + 31914344322.

It is an arithmetic number, because the mean of its divisors is an integer number (31914344322).

Almost surely, 2^63828688643 is an apocalyptic number.

63828688643 is a deficient number, since it is larger than the sum of its proper divisors (1).

63828688643 is an equidigital number, since it uses as much as digits as its factorization.

63828688643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63700992, while the sum is 62.

The spelling of 63828688643 in words is "sixty-three billion, eight hundred twenty-eight million, six hundred eighty-eight thousand, six hundred forty-three".