421658424264 has 256 divisors, whose sum is σ = 1377319956480. Its totient is φ = 104307793920.

The previous prime is 421658424247. The next prime is 421658424277. The reversal of 421658424264 is 462424856124.

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 63 ways as a sum of consecutive naturals, for example, 9882144 + ... + 9924720.

It is an arithmetic number, because the mean of its divisors is an integer number (5380156080).

Almost surely, 2^421658424264 is an apocalyptic number.

421658424264 is a gapful number since it is divisible by the number (44) 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 421658424264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (688659978240).

421658424264 is an abundant number, since it is smaller than the sum of its proper divisors (955661532216).

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

421658424264 is a wasteful number, since it uses less digits than its factorization.

421658424264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42860 (or 42856 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 48.

The spelling of 421658424264 in words is "four hundred twenty-one billion, six hundred fifty-eight million, four hundred twenty-four thousand, two hundred sixty-four".