420963686500 has 192 divisors, whose sum is σ = 1110068144640. Its totient is φ = 136234483200.

The previous prime is 420963686489. The next prime is 420963686503. The reversal of 420963686500 is 5686369024.

It is not an unprimeable number, because it can be changed into a prime (420963686503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18409074 + ... + 18431926.

It is an arithmetic number, because the mean of its divisors is an integer number (5781604920).

Almost surely, 2^420963686500 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 420963686500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (555034072320).

420963686500 is an abundant number, since it is smaller than the sum of its proper divisors (689104458140).

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

420963686500 is a wasteful number, since it uses less digits than its factorization.

420963686500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23175 (or 23163 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 420963686500 in words is "four hundred twenty billion, nine hundred sixty-three million, six hundred eighty-six thousand, five hundred".