724625383920 has 80 divisors (see below), whose sum is σ = 2294133166080. Its totient is φ = 189122083072.

The previous prime is 724625383907. The next prime is 724625383927. The reversal of 724625383920 is 29383526427.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724625383927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32108640 + ... + 32131199.

It is an arithmetic number, because the mean of its divisors is an integer number (28676664576).

Almost surely, 2^724625383920 is an apocalyptic number.

It is an amenable number.

724625383920 is an abundant number, since it is smaller than the sum of its proper divisors (1569507782160).

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

724625383920 is a wasteful number, since it uses less digits than its factorization.

724625383920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64239902 (or 64239896 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 724625383920 in words is "seven hundred twenty-four billion, six hundred twenty-five million, three hundred eighty-three thousand, nine hundred twenty".