63111228642 has 162 divisors, whose sum is σ = 175068859329. Its totient is φ = 16371210240.

The previous prime is 63111228641. The next prime is 63111228659. The reversal of 63111228642 is 24682211136.

It is a happy number.

63111228642 is a `hidden beast` number, since 6 + 3 + 1 + 1 + 1 + 2 + 2 + 8 + 642 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 62355583521 + 755645121 = 249711^2 + 27489^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=177639.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 63111228597 and 63111228606.

It is not an unprimeable number, because it can be changed into a prime (63111228641) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 82068834 + ... + 82069602.

Almost surely, 2^63111228642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63111228642

63111228642 is an abundant number, since it is smaller than the sum of its proper divisors (111957630687).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63111228642 is a wasteful number, since it uses less digits than its factorization.

63111228642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582 (or 792 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

Adding to 63111228642 its reverse (24682211136), we get a palindrome (87793439778).

The spelling of 63111228642 in words is "sixty-three billion, one hundred eleven million, two hundred twenty-eight thousand, six hundred forty-two".