528431064722 has 54 divisors (see below), whose sum is σ = 883448885991. Its totient is φ = 236880515960.

The previous prime is 528431064713. The next prime is 528431064793. The reversal of 528431064722 is 227460134825.

It can be written as a sum of positive squares in only one way, i.e., 264215532361 + 264215532361 = 514019^2 + 514019^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=514019.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 938598413 + ... + 938598975.

Almost surely, 2^528431064722 is an apocalyptic number.

528431064722 is a deficient number, since it is larger than the sum of its proper divisors (355017821269).

528431064722 is an frugal number, since it uses more digits than its factorization.

528431064722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 528431064722 in words is "five hundred twenty-eight billion, four hundred thirty-one million, sixty-four thousand, seven hundred twenty-two".