420648828808 has 32 divisors (see below), whose sum is σ = 858143646360. Its totient is φ = 192144107520.

The previous prime is 420648828797. The next prime is 420648828839. The reversal of 420648828808 is 808828846024.

It can be written as a sum of positive squares in 4 ways, for example, as 378763931844 + 41884896964 = 615438^2 + 204658^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20838883 + ... + 20859058.

Almost surely, 2^420648828808 is an apocalyptic number.

It is an amenable number.

420648828808 is an abundant number, since it is smaller than the sum of its proper divisors (437494817552).

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

420648828808 is a wasteful number, since it uses less digits than its factorization.

420648828808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41698057 (or 41698053 counting only the distinct ones).

The product of its (nonzero) digits is 12582912, while the sum is 58.

The spelling of 420648828808 in words is "four hundred twenty billion, six hundred forty-eight million, eight hundred twenty-eight thousand, eight hundred eight".