633425124040 has 16 divisors (see below), whose sum is σ = 1425206529180. Its totient is φ = 253370049600.

The previous prime is 633425123993. The next prime is 633425124049. The reversal of 633425124040 is 40421524336.

It can be written as a sum of positive squares in 2 ways, for example, as 632556171556 + 868952484 = 795334^2 + 29478^2 .

It is a junction number, because it is equal to n+sod(n) for n = 633425123987 and 633425124005.

It is not an unprimeable number, because it can be changed into a prime (633425124049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7917814011 + ... + 7917814090.

Almost surely, 2^633425124040 is an apocalyptic number.

It is an amenable number.

633425124040 is an abundant number, since it is smaller than the sum of its proper divisors (791781405140).

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

633425124040 is a wasteful number, since it uses less digits than its factorization.

633425124040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15835628112 (or 15835628108 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 633425124040 its reverse (40421524336), we get a palindrome (673846648376).

The spelling of 633425124040 in words is "six hundred thirty-three billion, four hundred twenty-five million, one hundred twenty-four thousand, forty".