63421435133 has 16 divisors (see below), whose sum is σ = 73227141120. Its totient is φ = 53804154096.

The previous prime is 63421435127. The next prime is 63421435163. The reversal of 63421435133 is 33153412436.

It is not a de Polignac number, because 63421435133 - 2⁶ = 63421435069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63421435093 and 63421435102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63421435163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287360 + ... + 457622.

It is an arithmetic number, because the mean of its divisors is an integer number (4576696320).

Almost surely, 2^63421435133 is an apocalyptic number.

It is an amenable number.

63421435133 is a deficient number, since it is larger than the sum of its proper divisors (9805705987).

63421435133 is a wasteful number, since it uses less digits than its factorization.

63421435133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170816.

The product of its digits is 77760, while the sum is 35.

Adding to 63421435133 its reverse (33153412436), we get a palindrome (96574847569).

The spelling of 63421435133 in words is "sixty-three billion, four hundred twenty-one million, four hundred thirty-five thousand, one hundred thirty-three".