421925529124 has 144 divisors (see below), whose sum is σ = 926642324160. Its totient is φ = 166829414400.

The previous prime is 421925529121. The next prime is 421925529127.

It is a happy number.

421925529124 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (421925529121) and next prime (421925529127).

It is not an unprimeable number, because it can be changed into a prime (421925529121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6376699 + ... + 6442525.

It is an arithmetic number, because the mean of its divisors is an integer number (6435016140).

Almost surely, 2^421925529124 is an apocalyptic number.

421925529124 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

421925529124 is an abundant number, since it is smaller than the sum of its proper divisors (504716795036).

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

421925529124 is a wasteful number, since it uses less digits than its factorization.

421925529124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65930 (or 65917 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The spelling of 421925529124 in words is "four hundred twenty-one billion, nine hundred twenty-five million, five hundred twenty-nine thousand, one hundred twenty-four".