420850451824 has 20 divisors (see below), whose sum is σ = 889524819000. Its totient is φ = 191295659840.

The previous prime is 420850451803. The next prime is 420850451831. The reversal of 420850451824 is 428154058024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1195597699 + ... + 1195598050.

It is an arithmetic number, because the mean of its divisors is an integer number (44476240950).

Almost surely, 2^420850451824 is an apocalyptic number.

420850451824 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

420850451824 is an abundant number, since it is smaller than the sum of its proper divisors (468674367176).

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

420850451824 is a wasteful number, since it uses less digits than its factorization.

420850451824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391195768 (or 2391195762 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 43.

The spelling of 420850451824 in words is "four hundred twenty billion, eight hundred fifty million, four hundred fifty-one thousand, eight hundred twenty-four".