63612144331 has 4 divisors (see below), whose sum is σ = 67354035192. Its totient is φ = 59870253472.

The previous prime is 63612144319. The next prime is 63612144371. The reversal of 63612144331 is 13344121636.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 63612144331 - 2¹³ = 63612136139 is a prime.

It is a super-2 number, since 2×63612144331² (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 (63612144371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1870945405 + ... + 1870945438.

It is an arithmetic number, because the mean of its divisors is an integer number (16838508798).

Almost surely, 2^63612144331 is an apocalyptic number.

63612144331 is a deficient number, since it is larger than the sum of its proper divisors (3741890861).

63612144331 is a wasteful number, since it uses less digits than its factorization.

63612144331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741890860.

The product of its digits is 31104, while the sum is 34.

Adding to 63612144331 its reverse (13344121636), we get a palindrome (76956265967).

The spelling of 63612144331 in words is "sixty-three billion, six hundred twelve million, one hundred forty-four thousand, three hundred thirty-one".