420124212456 has 128 divisors (see below), whose sum is σ = 1209987434880. Its totient is φ = 120410505216.

The previous prime is 420124212437. The next prime is 420124212499. The reversal of 420124212456 is 654212421024.

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, 106195 + ... + 922781.

It is an arithmetic number, because the mean of its divisors is an integer number (9453026835).

Almost surely, 2^420124212456 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 420124212456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (604993717440).

420124212456 is an abundant number, since it is smaller than the sum of its proper divisors (789863222424).

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

420124212456 is a wasteful number, since it uses less digits than its factorization.

420124212456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816723 (or 816719 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The spelling of 420124212456 in words is "four hundred twenty billion, one hundred twenty-four million, two hundred twelve thousand, four hundred fifty-six".