63876713481 has 40 divisors (see below), whose sum is σ = 109073008704. Its totient is φ = 36494051040.

The previous prime is 63876713479. The next prime is 63876713503. The reversal of 63876713481 is 18431767836.

It is not a de Polignac number, because 63876713481 - 2¹ = 63876713479 is a prime.

It is a super-2 number, since 2×63876713481² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63876713441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5325511 + ... + 5337491.

Almost surely, 2^63876713481 is an apocalyptic number.

It is an amenable number.

63876713481 is a deficient number, since it is larger than the sum of its proper divisors (45196295223).

63876713481 is a wasteful number, since it uses less digits than its factorization.

63876713481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21403 (or 21394 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 63876713481 in words is "sixty-three billion, eight hundred seventy-six million, seven hundred thirteen thousand, four hundred eighty-one".