528607345920 has 144 divisors (see below), whose sum is σ = 1787548150080. Its totient is φ = 132670062592.

The previous prime is 528607345907. The next prime is 528607345949. The reversal of 528607345920 is 29543706825.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3983490 + ... + 4114049.

It is an arithmetic number, because the mean of its divisors is an integer number (12413528820).

Almost surely, 2^528607345920 is an apocalyptic number.

It is an amenable number.

528607345920 is an abundant number, since it is smaller than the sum of its proper divisors (1258940804160).

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

528607345920 is a wasteful number, since it uses less digits than its factorization.

528607345920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8097580 (or 8097566 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 528607345920 in words is "five hundred twenty-eight billion, six hundred seven million, three hundred forty-five thousand, nine hundred twenty".