425482021636 has 72 divisors (see below), whose sum is σ = 904419492480. Its totient is φ = 174305311488.

The previous prime is 425482021577. The next prime is 425482021681. The reversal of 425482021636 is 636120284524.

It is a junction number, because it is equal to n+sod(n) for n = 425482021592 and 425482021601.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6925260 + ... + 6986428.

It is an arithmetic number, because the mean of its divisors is an integer number (12561381840).

Almost surely, 2^425482021636 is an apocalyptic number.

425482021636 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425482021636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452209746240).

425482021636 is an abundant number, since it is smaller than the sum of its proper divisors (478937470844).

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

425482021636 is a wasteful number, since it uses less digits than its factorization.

425482021636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62753 (or 62744 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 425482021636 in words is "four hundred twenty-five billion, four hundred eighty-two million, twenty-one thousand, six hundred thirty-six".