425897737452 has 144 divisors (see below), whose sum is σ = 1252837017600. Its totient is φ = 124896578400.

The previous prime is 425897737439. The next prime is 425897737469. The reversal of 425897737452 is 254737798524.

It is a happy number.

425897737452 is a `hidden beast` number, since 4 + 2 + 5 + 89 + 77 + 37 + 452 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 425897737452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120552 + ... + 930767.

Almost surely, 2^425897737452 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 425897737452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626418508800).

425897737452 is an abundant number, since it is smaller than the sum of its proper divisors (826939280148).

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

425897737452 is a wasteful number, since it uses less digits than its factorization.

425897737452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051385 (or 1051366 counting only the distinct ones).

The product of its digits is 118540800, while the sum is 63.

The spelling of 425897737452 in words is "four hundred twenty-five billion, eight hundred ninety-seven million, seven hundred thirty-seven thousand, four hundred fifty-two".