421899649120 has 48 divisors (see below), whose sum is σ = 1002306357360. Its totient is φ = 167817055744.

The previous prime is 421899649051. The next prime is 421899649139. The reversal of 421899649120 is 21946998124.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7336927 + ... + 7394206.

It is an arithmetic number, because the mean of its divisors is an integer number (20881382445).

Almost surely, 2^421899649120 is an apocalyptic number.

421899649120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421899649120 is an abundant number, since it is smaller than the sum of its proper divisors (580406708240).

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

421899649120 is a wasteful number, since it uses less digits than its factorization.

421899649120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14731327 (or 14731319 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 421899649120 in words is "four hundred twenty-one billion, eight hundred ninety-nine million, six hundred forty-nine thousand, one hundred twenty".