425920858428 has 96 divisors (see below), whose sum is σ = 1095714385920. Its totient is φ = 127949713920.

The previous prime is 425920858427. The next prime is 425920858463. The reversal of 425920858428 is 824858029524.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425920858427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2927773 + ... + 3069803.

It is an arithmetic number, because the mean of its divisors is an integer number (11413691520).

Almost surely, 2^425920858428 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 425920858428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547857192960).

425920858428 is an abundant number, since it is smaller than the sum of its proper divisors (669793527492).

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

425920858428 is a wasteful number, since it uses less digits than its factorization.

425920858428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142507 (or 142505 counting only the distinct ones).

The product of its (nonzero) digits is 14745600, while the sum is 57.

The spelling of 425920858428 in words is "four hundred twenty-five billion, nine hundred twenty million, eight hundred fifty-eight thousand, four hundred twenty-eight".