425204546646 has 128 divisors (see below), whose sum is σ = 980106117120. Its totient is φ = 121719945600.

The previous prime is 425204546629. The next prime is 425204546651. The reversal of 425204546646 is 646645402524.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 425204546595 and 425204546604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60818211 + ... + 60825201.

It is an arithmetic number, because the mean of its divisors is an integer number (7657079040).

Almost surely, 2^425204546646 is an apocalyptic number.

425204546646 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 425204546646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490053058560).

425204546646 is an abundant number, since it is smaller than the sum of its proper divisors (554901570474).

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

425204546646 is a wasteful number, since it uses less digits than its factorization.

425204546646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7522.

The product of its (nonzero) digits is 5529600, while the sum is 48.

The spelling of 425204546646 in words is "four hundred twenty-five billion, two hundred four million, five hundred forty-six thousand, six hundred forty-six".