8640628075 has 6 divisors (see below), whose sum is σ = 10714378844. Its totient is φ = 6912502440.

The previous prime is 8640628067. The next prime is 8640628121. The reversal of 8640628075 is 5708260468.

It is not a de Polignac number, because 8640628075 - 2³ = 8640628067 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 172812537 + ... + 172812586.

Almost surely, 2^8640628075 is an apocalyptic number.

8640628075 is a deficient number, since it is larger than the sum of its proper divisors (2073750769).

8640628075 is a wasteful number, since it uses less digits than its factorization.

8640628075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345625133 (or 345625128 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 8640628075 is about 92954.9787531577. The cubic root of 8640628075 is about 2052.0208567120.

It can be divided in two parts, 86406 and 28075, that added together give a triangular number (114481 = T₄₇₈).

The spelling of 8640628075 in words is "eight billion, six hundred forty million, six hundred twenty-eight thousand, seventy-five".