63936282481 has 16 divisors (see below), whose sum is σ = 71333991360. Its totient is φ = 56949212160.

The previous prime is 63936282469. The next prime is 63936282493. The reversal of 63936282481 is 18428263936.

It is an interprime number because it is at equal distance from previous prime (63936282469) and next prime (63936282493).

It is a cyclic number.

It is not a de Polignac number, because 63936282481 - 2²³ = 63927893873 is a prime.

It is a super-2 number, since 2×63936282481² (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 (63936282581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211705 + ... + 415561.

It is an arithmetic number, because the mean of its divisors is an integer number (4458374460).

Almost surely, 2^63936282481 is an apocalyptic number.

It is an amenable number.

63936282481 is a deficient number, since it is larger than the sum of its proper divisors (7397708879).

63936282481 is a wasteful number, since it uses less digits than its factorization.

63936282481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204864.

The product of its digits is 2985984, while the sum is 52.

The spelling of 63936282481 in words is "sixty-three billion, nine hundred thirty-six million, two hundred eighty-two thousand, four hundred eighty-one".