425405321440000 has 720 divisors, whose sum is σ = 1251419623534080. Its totient is φ = 142589859840000.

The previous prime is 425405321439979. The next prime is 425405321440097. The reversal of 425405321440000 is 44123504524.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1237108089 + ... + 1237451911.

It is an arithmetic number, because the mean of its divisors is an integer number (1738082810464).

Almost surely, 2^{425405321440000} is an apocalyptic number.

425405321440000 is a gapful number since it is divisible by the number (40) 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 425405321440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (625709811767040).

425405321440000 is an abundant number, since it is smaller than the sum of its proper divisors (826014302094080).

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

425405321440000 is a wasteful number, since it uses less digits than its factorization.

425405321440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343926 (or 343897 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 425405321440000 its reverse (44123504524), we get a palindrome (425449444944524).

The spelling of 425405321440000 in words is "four hundred twenty-five trillion, four hundred five billion, three hundred twenty-one million, four hundred forty thousand".