8618021153 has 4 divisors (see below), whose sum is σ = 9849167040. Its totient is φ = 7386875268.

The previous prime is 8618021119. The next prime is 8618021183. The reversal of 8618021153 is 3511208168.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8618021153 - 2¹⁰ = 8618020129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8618021183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615572933 + ... + 615572946.

It is an arithmetic number, because the mean of its divisors is an integer number (2462291760).

Almost surely, 2^8618021153 is an apocalyptic number.

It is an amenable number.

8618021153 is a deficient number, since it is larger than the sum of its proper divisors (1231145887).

8618021153 is a wasteful number, since it uses less digits than its factorization.

8618021153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231145886.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 8618021153 is about 92833.2976522972. The cubic root of 8618021153 is about 2050.2296909400.

The spelling of 8618021153 in words is "eight billion, six hundred eighteen million, twenty-one thousand, one hundred fifty-three".