425865430573242 has 128 divisors (see below), whose sum is σ = 939805392734208. Its totient is φ = 128642245466240.

The previous prime is 425865430573241. The next prime is 425865430573351. The reversal of 425865430573242 is 242375034568524.

It is a happy number.

It is a super-2 number, since 2×425865430573242² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (425865430573241) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3442471153 + ... + 3442594859.

It is an arithmetic number, because the mean of its divisors is an integer number (7342229630736).

Almost surely, 2^{425865430573242} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425865430573242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469902696367104).

425865430573242 is an abundant number, since it is smaller than the sum of its proper divisors (513939962160966).

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

425865430573242 is a wasteful number, since it uses less digits than its factorization.

425865430573242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125105 (or 125083 counting only the distinct ones).

The product of its (nonzero) digits is 193536000, while the sum is 60.

The spelling of 425865430573242 in words is "four hundred twenty-five trillion, eight hundred sixty-five billion, four hundred thirty million, five hundred seventy-three thousand, two hundred forty-two".