63530181131997 has 16 divisors (see below), whose sum is σ = 84753630097920. Its totient is φ = 42330094129152.

The previous prime is 63530181131971. The next prime is 63530181132007. The reversal of 63530181131997 is 79913118103536.

It is a happy number.

It is not a de Polignac number, because 63530181131997 - 2¹² = 63530181127901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63530181131917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335204653 + ... + 335394125.

It is an arithmetic number, because the mean of its divisors is an integer number (5297101881120).

Almost surely, 2^{63530181131997} is an apocalyptic number.

It is an amenable number.

63530181131997 is a deficient number, since it is larger than the sum of its proper divisors (21223448965923).

63530181131997 is a wasteful number, since it uses less digits than its factorization.

63530181131997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250532.

The product of its (nonzero) digits is 3674160, while the sum is 57.

The spelling of 63530181131997 in words is "sixty-three trillion, five hundred thirty billion, one hundred eighty-one million, one hundred thirty-one thousand, nine hundred ninety-seven".