421388603068960 has 384 divisors, whose sum is σ = 1070619158568960. Its totient is φ = 156449503641600.

The previous prime is 421388603068883. The next prime is 421388603068963. The reversal of 421388603068960 is 69860306883124.

It is a junction number, because it is equal to n+sod(n) for n = 421388603068892 and 421388603068901.

It is not an unprimeable number, because it can be changed into a prime (421388603068963) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3743191234 + ... + 3743303806.

It is an arithmetic number, because the mean of its divisors is an integer number (2788070725440).

Almost surely, 2^{421388603068960} is an apocalyptic number.

421388603068960 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 421388603068960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535309579284480).

421388603068960 is an abundant number, since it is smaller than the sum of its proper divisors (649230555500000).

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

421388603068960 is a wasteful number, since it uses less digits than its factorization.

421388603068960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112972 (or 112964 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 64.

The spelling of 421388603068960 in words is "four hundred twenty-one trillion, three hundred eighty-eight billion, six hundred three million, sixty-eight thousand, nine hundred sixty".