8615650949 has 12 divisors (see below), whose sum is σ = 9190316388. Its totient is φ = 8075136000.

The previous prime is 8615650943. The next prime is 8615650969. The reversal of 8615650949 is 9490565168.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 406022500 + 8209628449 = 20150^2 + 90607^2 .

It is not a de Polignac number, because 8615650949 - 2¹⁶ = 8615585413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8615650949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8615650943) 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 11 ways as a sum of consecutive naturals, for example, 7799 + ... + 131499.

It is an arithmetic number, because the mean of its divisors is an integer number (765859699).

Almost surely, 2^8615650949 is an apocalyptic number.

It is an amenable number.

8615650949 is a deficient number, since it is larger than the sum of its proper divisors (574665439).

8615650949 is a wasteful number, since it uses less digits than its factorization.

8615650949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123976 (or 123959 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 53.

The square root of 8615650949 is about 92820.5308592878. The cubic root of 8615650949 is about 2050.0417163036.

The spelling of 8615650949 in words is "eight billion, six hundred fifteen million, six hundred fifty thousand, nine hundred forty-nine".