63118476081 has 12 divisors (see below), whose sum is σ = 91173962308. Its totient is φ = 42077677824.

The previous prime is 63118476077. The next prime is 63118476101. The reversal of 63118476081 is 18067481136.

63118476081 is a `hidden beast` number, since 6 + 31 + 1 + 8 + 4 + 7 + 608 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 46135173681 + 16983302400 = 214791^2 + 130320^2 .

It is not a de Polignac number, because 63118476081 - 2² = 63118476077 is a prime.

It is a super-2 number, since 2×63118476081² (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 (63118476781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 264621 + ... + 443013.

Almost surely, 2^63118476081 is an apocalyptic number.

It is an amenable number.

63118476081 is a deficient number, since it is larger than the sum of its proper divisors (28055486227).

63118476081 is a wasteful number, since it uses less digits than its factorization.

63118476081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217712 (or 217709 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 63118476081 in words is "sixty-three billion, one hundred eighteen million, four hundred seventy-six thousand, eighty-one".