8529644128 has 12 divisors (see below), whose sum is σ = 16792736940. Its totient is φ = 4264822048.

The previous prime is 8529644113. The next prime is 8529644147. The reversal of 8529644128 is 8214469258.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133275658 + ... + 133275721.

It is an arithmetic number, because the mean of its divisors is an integer number (1399394745).

Almost surely, 2^8529644128 is an apocalyptic number.

It is an amenable number.

8529644128 is a deficient number, since it is larger than the sum of its proper divisors (8263092812).

8529644128 is a wasteful number, since it uses less digits than its factorization.

8529644128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266551389 (or 266551381 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 49.

The square root of 8529644128 is about 92356.0725020288. The cubic root of 8529644128 is about 2043.1972905129.

The spelling of 8529644128 in words is "eight billion, five hundred twenty-nine million, six hundred forty-four thousand, one hundred twenty-eight".