421128754860 has 96 divisors (see below), whose sum is σ = 1301855369472. Its totient is φ = 100861784320.

The previous prime is 421128754847. The next prime is 421128754867. The reversal of 421128754860 is 68457821124.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (421128754867) 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, 3789039 + ... + 3898598.

It is an arithmetic number, because the mean of its divisors is an integer number (13560993432).

Almost surely, 2^421128754860 is an apocalyptic number.

It is an amenable number.

421128754860 is an abundant number, since it is smaller than the sum of its proper divisors (880726614612).

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

421128754860 is a wasteful number, since it uses less digits than its factorization.

421128754860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7687743 (or 7687741 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The spelling of 421128754860 in words is "four hundred twenty-one billion, one hundred twenty-eight million, seven hundred fifty-four thousand, eight hundred sixty".