425801421072 has 240 divisors, whose sum is σ = 1359085298688. Its totient is φ = 123654389760.

The previous prime is 425801421029. The next prime is 425801421079. The reversal of 425801421072 is 270124108524.

425801421072 is a `hidden beast` number, since 4 + 2 + 580 + 1 + 4 + 2 + 1 + 0 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (425801421079) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1623448 + ... + 1867400.

Almost surely, 2^425801421072 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 425801421072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (679542649344).

425801421072 is an abundant number, since it is smaller than the sum of its proper divisors (933283877616).

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

425801421072 is a wasteful number, since it uses less digits than its factorization.

425801421072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244038 (or 244029 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

Adding to 425801421072 its reverse (270124108524), we get a palindrome (695925529596).

The spelling of 425801421072 in words is "four hundred twenty-five billion, eight hundred one million, four hundred twenty-one thousand, seventy-two".