431620644415620 has 384 divisors, whose sum is σ = 1328581876285440. Its totient is φ = 103830674688000.

The previous prime is 431620644415567. The next prime is 431620644415699. The reversal of 431620644415620 is 26514446026134.

It is a self number, because there is not a number n which added to its sum of digits gives 431620644415620.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 108202716586 + ... + 108202720574.

It is an arithmetic number, because the mean of its divisors is an integer number (3459848636160).

Almost surely, 2^{431620644415620} 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 431620644415620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664290938142720).

431620644415620 is an abundant number, since it is smaller than the sum of its proper divisors (896961231869820).

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

431620644415620 is a wasteful number, since it uses less digits than its factorization.

431620644415620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6107 (or 6105 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 48.

The spelling of 431620644415620 in words is "four hundred thirty-one trillion, six hundred twenty billion, six hundred forty-four million, four hundred fifteen thousand, six hundred twenty".