63507654881 has 8 divisors (see below), whose sum is σ = 69311319744. Its totient is φ = 57709030320.

The previous prime is 63507654863. The next prime is 63507654911. The reversal of 63507654881 is 18845670536.

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

It is a cyclic number.

It is not a de Polignac number, because 63507654881 - 2¹⁸ = 63507392737 is a prime.

It is a super-2 number, since 2×63507654881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63507654281) 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 7 ways as a sum of consecutive naturals, for example, 1233701 + ... + 1284146.

It is an arithmetic number, because the mean of its divisors is an integer number (8663914968).

Almost surely, 2^63507654881 is an apocalyptic number.

It is an amenable number.

63507654881 is a deficient number, since it is larger than the sum of its proper divisors (5803664863).

63507654881 is a wasteful number, since it uses less digits than its factorization.

63507654881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520151.

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 63507654881 in words is "sixty-three billion, five hundred seven million, six hundred fifty-four thousand, eight hundred eighty-one".