431219807772 has 48 divisors (see below), whose sum is σ = 1083773978112. Its totient is φ = 132659017920.

The previous prime is 431219807743. The next prime is 431219807773. The reversal of 431219807772 is 277708912134.

It is a super-2 number, since 2×431219807772² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431219807773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 624993 + ... + 1119399.

It is an arithmetic number, because the mean of its divisors is an integer number (22578624544).

Almost surely, 2^431219807772 is an apocalyptic number.

It is an amenable number.

431219807772 is an abundant number, since it is smaller than the sum of its proper divisors (652554170340).

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

431219807772 is a wasteful number, since it uses less digits than its factorization.

431219807772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500018 (or 500016 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 51.

The spelling of 431219807772 in words is "four hundred thirty-one billion, two hundred nineteen million, eight hundred seven thousand, seven hundred seventy-two".