528997557996 has 48 divisors (see below), whose sum is σ = 1371516854400. Its totient is φ = 176327157456.

The previous prime is 528997557973. The next prime is 528997558009. The reversal of 528997557996 is 699755799825.

528997557996 is a `hidden beast` number, since 52 + 8 + 9 + 9 + 7 + 557 + 9 + 9 + 6 = 666.

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, 5244091 + ... + 5344013.

It is an arithmetic number, because the mean of its divisors is an integer number (28573267800).

Almost surely, 2^528997557996 is an apocalyptic number.

It is an amenable number.

528997557996 is an abundant number, since it is smaller than the sum of its proper divisors (842519296404).

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

528997557996 is a wasteful number, since it uses less digits than its factorization.

528997557996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148955 (or 148947 counting only the distinct ones).

The product of its digits is 3857868000, while the sum is 81.

The spelling of 528997557996 in words is "five hundred twenty-eight billion, nine hundred ninety-seven million, five hundred fifty-seven thousand, nine hundred ninety-six".