421625989744 has 40 divisors (see below), whose sum is σ = 830902734000. Its totient is φ = 207200825856.

The previous prime is 421625989727. The next prime is 421625989789. The reversal of 421625989744 is 447989526124.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5331162 + ... + 5409670.

It is an arithmetic number, because the mean of its divisors is an integer number (20772568350).

Almost surely, 2^421625989744 is an apocalyptic number.

It is an amenable number.

421625989744 is a deficient number, since it is larger than the sum of its proper divisors (409276744256).

421625989744 is a wasteful number, since it uses less digits than its factorization.

421625989744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84265 (or 84259 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 61.

The spelling of 421625989744 in words is "four hundred twenty-one billion, six hundred twenty-five million, nine hundred eighty-nine thousand, seven hundred forty-four".