6431225620 has 12 divisors (see below), whose sum is σ = 13505573844. Its totient is φ = 2572490240.

The previous prime is 6431225561. The next prime is 6431225627. The reversal of 6431225620 is 265221346.

It can be written as a sum of positive squares in 2 ways, for example, as 675272196 + 5755953424 = 25986^2 + 75868^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6431225627) by changing a digit.

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, 160780621 + ... + 160780660.

It is an arithmetic number, because the mean of its divisors is an integer number (1125464487).

Almost surely, 2^6431225620 is an apocalyptic number.

It is an amenable number.

6431225620 is an abundant number, since it is smaller than the sum of its proper divisors (7074348224).

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

6431225620 is a wasteful number, since it uses less digits than its factorization.

6431225620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321561290 (or 321561288 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 6431225620 is about 80194.9226572356. The cubic root of 6431225620 is about 1859.6501461695.

Adding to 6431225620 its reverse (265221346), we get a palindrome (6696446966).

The spelling of 6431225620 in words is "six billion, four hundred thirty-one million, two hundred twenty-five thousand, six hundred twenty".