961618848 has 48 divisors (see below), whose sum is σ = 2525957280. Its totient is φ = 320322816.

The previous prime is 961618841. The next prime is 961618849. The reversal of 961618848 is 848816169.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 961618848.

It is not an unprimeable number, because it can be changed into a prime (961618841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206886 + ... + 211482.

It is an arithmetic number, because the mean of its divisors is an integer number (52624110).

Almost surely, 2^961618848 is an apocalyptic number.

It is an amenable number.

961618848 is an abundant number, since it is smaller than the sum of its proper divisors (1564338432).

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

961618848 is a wasteful number, since it uses less digits than its factorization.

961618848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6789 (or 6781 counting only the distinct ones).

The product of its digits is 663552, while the sum is 51.

The square root of 961618848 is about 31009.9798129570. The cubic root of 961618848 is about 987.0390214604.

The spelling of 961618848 in words is "nine hundred sixty-one million, six hundred eighteen thousand, eight hundred forty-eight".