8658650091 has 32 divisors (see below), whose sum is σ = 14271763968. Its totient is φ = 4547047680.

The previous prime is 8658650057. The next prime is 8658650101. The reversal of 8658650091 is 1900568568.

It is not a de Polignac number, because 8658650091 - 2¹⁴ = 8658633707 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 8658650091.

It is not an unprimeable number, because it can be changed into a prime (8658650051) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 7890 + ... + 131831.

It is an arithmetic number, because the mean of its divisors is an integer number (445992624).

Almost surely, 2^8658650091 is an apocalyptic number.

8658650091 is a deficient number, since it is larger than the sum of its proper divisors (5613113877).

8658650091 is a wasteful number, since it uses less digits than its factorization.

8658650091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139971.

The product of its (nonzero) digits is 518400, while the sum is 48.

The square root of 8658650091 is about 93051.8677458975. The cubic root of 8658650091 is about 2053.4465197142.

The spelling of 8658650091 in words is "eight billion, six hundred fifty-eight million, six hundred fifty thousand, ninety-one".