421335649080 has 384 divisors, whose sum is σ = 1438441804800. Its totient is φ = 110911514112.

The previous prime is 421335649073. The next prime is 421335649093. The reversal of 421335649080 is 80946533124.

421335649080 is a `hidden beast` number, since 4 + 2 + 1 + 3 + 3 + 564 + 9 + 0 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 266161969 + ... + 266163551.

It is an arithmetic number, because the mean of its divisors is an integer number (3745942200).

Almost surely, 2^421335649080 is an apocalyptic number.

421335649080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421335649080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (719220902400).

421335649080 is an abundant number, since it is smaller than the sum of its proper divisors (1017106155720).

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

421335649080 is a wasteful number, since it uses less digits than its factorization.

421335649080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 421335649080 in words is "four hundred twenty-one billion, three hundred thirty-five million, six hundred forty-nine thousand, eighty".