431550420432 has 20 divisors (see below), whose sum is σ = 1114838586240. Its totient is φ = 143850140128.

The previous prime is 431550420403. The next prime is 431550420443. The reversal of 431550420432 is 234024055134.

It is a junction number, because it is equal to n+sod(n) for n = 431550420393 and 431550420402.

It is a congruent number.

It is an unprimeable number.

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, 4495316832 + ... + 4495316927.

It is an arithmetic number, because the mean of its divisors is an integer number (55741929312).

Almost surely, 2^431550420432 is an apocalyptic number.

It is an amenable number.

431550420432 is an abundant number, since it is smaller than the sum of its proper divisors (683288165808).

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

431550420432 is a wasteful number, since it uses less digits than its factorization.

431550420432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8990633770 (or 8990633764 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 431550420432 its reverse (234024055134), we get a palindrome (665574475566).

The spelling of 431550420432 in words is "four hundred thirty-one billion, five hundred fifty million, four hundred twenty thousand, four hundred thirty-two".