8649248946 has 32 divisors (see below), whose sum is σ = 19439118720. Its totient is φ = 2545597824.

The previous prime is 8649248929. The next prime is 8649248947. The reversal of 8649248946 is 6498429468.

It is a super-2 number, since 2×8649248946² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8649248946.

It is not an unprimeable number, because it can be changed into a prime (8649248947) 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 15 ways as a sum of consecutive naturals, for example, 2408811 + ... + 2412398.

It is an arithmetic number, because the mean of its divisors is an integer number (607472460).

Almost surely, 2^8649248946 is an apocalyptic number.

8649248946 is an abundant number, since it is smaller than the sum of its proper divisors (10789869774).

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

8649248946 is a wasteful number, since it uses less digits than its factorization.

8649248946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4821250.

The product of its digits is 23887872, while the sum is 60.

The square root of 8649248946 is about 93001.3384097240. The cubic root of 8649248946 is about 2052.7030728252.

The spelling of 8649248946 in words is "eight billion, six hundred forty-nine million, two hundred forty-eight thousand, nine hundred forty-six".