63786864527 has 4 divisors (see below), whose sum is σ = 64503570960. Its totient is φ = 63070158096.

The previous prime is 63786864497. The next prime is 63786864529. The reversal of 63786864527 is 72546868736.

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

It is a cyclic number.

It is not a de Polignac number, because 63786864527 - 2¹⁴ = 63786848143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63786864527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63786864529) 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, 358353083 + ... + 358353260.

It is an arithmetic number, because the mean of its divisors is an integer number (16125892740).

Almost surely, 2^63786864527 is an apocalyptic number.

63786864527 is a deficient number, since it is larger than the sum of its proper divisors (716706433).

63786864527 is an equidigital number, since it uses as much as digits as its factorization.

63786864527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716706432.

The product of its digits is 81285120, while the sum is 62.

The spelling of 63786864527 in words is "sixty-three billion, seven hundred eighty-six million, eight hundred sixty-four thousand, five hundred twenty-seven".