8621653158 has 12 divisors (see below), whose sum is σ = 18680248548. Its totient is φ = 2873884380.

The previous prime is 8621653151. The next prime is 8621653253. The reversal of 8621653158 is 8513561268.

8621653158 is a `hidden beast` number, since 8 + 62 + 1 + 6 + 531 + 58 = 666.

8621653158 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8621653151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 239490348 + ... + 239490383.

It is an arithmetic number, because the mean of its divisors is an integer number (1556687379).

Almost surely, 2^8621653158 is an apocalyptic number.

8621653158 is an abundant number, since it is smaller than the sum of its proper divisors (10058595390).

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

8621653158 is a wasteful number, since it uses less digits than its factorization.

8621653158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478980739 (or 478980736 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 8621653158 is about 92852.8575650744. The cubic root of 8621653158 is about 2050.5176688303.

The spelling of 8621653158 in words is "eight billion, six hundred twenty-one million, six hundred fifty-three thousand, one hundred fifty-eight".