624542447420 has 24 divisors (see below), whose sum is σ = 1343527900848. Its totient is φ = 243723881600.

The previous prime is 624542447393. The next prime is 624542447447. The reversal of 624542447420 is 24744245426.

624542447420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (624542447393) and next prime (624542447447).

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, 380817746 + ... + 380819385.

It is an arithmetic number, because the mean of its divisors is an integer number (55980329202).

Almost surely, 2^624542447420 is an apocalyptic number.

It is an amenable number.

624542447420 is an abundant number, since it is smaller than the sum of its proper divisors (718985453428).

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

624542447420 is a wasteful number, since it uses less digits than its factorization.

624542447420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761637181 (or 761637179 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 44.

The spelling of 624542447420 in words is "six hundred twenty-four billion, five hundred forty-two million, four hundred forty-seven thousand, four hundred twenty".