425392178787968 has 256 divisors, whose sum is σ = 1075781316096000. Its totient is φ = 163349983272960.

The previous prime is 425392178787889. The next prime is 425392178788001. The reversal of 425392178787968 is 869787871293524.

It is a self number, because there is not a number n which added to its sum of digits gives 425392178787968.

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, 28744613 + ... + 40951643.

It is an arithmetic number, because the mean of its divisors is an integer number (4202270766000).

Almost surely, 2^{425392178787968} 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 425392178787968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537890658048000).

425392178787968 is an abundant number, since it is smaller than the sum of its proper divisors (650389137308032).

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

425392178787968 is a wasteful number, since it uses less digits than its factorization.

425392178787968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12207183 (or 12207171 counting only the distinct ones).

The product of its digits is 20483850240, while the sum is 86.

The spelling of 425392178787968 in words is "four hundred twenty-five trillion, three hundred ninety-two billion, one hundred seventy-eight million, seven hundred eighty-seven thousand, nine hundred sixty-eight".