421848999936 has 1728 divisors, whose sum is σ = 1685667110400. Its totient is φ = 100329062400.

The previous prime is 421848999907. The next prime is 421849000019. The reversal of 421848999936 is 639999848124.

421848999936 is a `hidden beast` number, since 4 + 21 + 8 + 489 + 9 + 99 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6915557346 + ... + 6915557406.

It is an arithmetic number, because the mean of its divisors is an integer number (975501800).

Almost surely, 2^421848999936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421848999936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842833555200).

421848999936 is an abundant number, since it is smaller than the sum of its proper divisors (1263818110464).

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

421848999936 is a wasteful number, since it uses less digits than its factorization.

421848999936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 136 counting only the distinct ones).

The product of its digits is 241864704, while the sum is 72.

The spelling of 421848999936 in words is "four hundred twenty-one billion, eight hundred forty-eight million, nine hundred ninety-nine thousand, nine hundred thirty-six".