431630012320444 has 96 divisors (see below), whose sum is σ = 918265854320640. Its totient is φ = 173901072842496.

The previous prime is 431630012320433. The next prime is 431630012320513. The reversal of 431630012320444 is 444023210036134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116899849 + ... + 120535615.

It is an arithmetic number, because the mean of its divisors is an integer number (9565269315840).

Almost surely, 2^{431630012320444} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431630012320444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459132927160320).

431630012320444 is an abundant number, since it is smaller than the sum of its proper divisors (486635842000196).

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

431630012320444 is a wasteful number, since it uses less digits than its factorization.

431630012320444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3636692 (or 3636656 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 37.

Adding to 431630012320444 its reverse (444023210036134), we get a palindrome (875653222356578).

The spelling of 431630012320444 in words is "four hundred thirty-one trillion, six hundred thirty billion, twelve million, three hundred twenty thousand, four hundred forty-four".