425042023728 has 160 divisors (see below), whose sum is σ = 1329324632064. Its totient is φ = 114243526656.

The previous prime is 425042023669. The next prime is 425042023733. The reversal of 425042023728 is 827320240524.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13047076 + ... + 13079612.

Almost surely, 2^425042023728 is an apocalyptic number.

425042023728 is a gapful number since it is divisible by the number (48) 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 425042023728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664662316032).

425042023728 is an abundant number, since it is smaller than the sum of its proper divisors (904282608336).

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

425042023728 is a wasteful number, since it uses less digits than its factorization.

425042023728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34859 (or 34853 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 39.

The spelling of 425042023728 in words is "four hundred twenty-five billion, forty-two million, twenty-three thousand, seven hundred twenty-eight".