961903375680 has 224 divisors, whose sum is σ = 3402383644800. Its totient is φ = 228611432448.

The previous prime is 961903375649. The next prime is 961903375691. The reversal of 961903375680 is 86573309169.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 961903375680.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 966970 + ... + 1690809.

It is an arithmetic number, because the mean of its divisors is an integer number (15189212700).

Almost surely, 2^961903375680 is an apocalyptic number.

It is an amenable number.

961903375680 is an abundant number, since it is smaller than the sum of its proper divisors (2440480269120).

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

961903375680 is a wasteful number, since it uses less digits than its factorization.

961903375680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657841 (or 2657831 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 57.

The spelling of 961903375680 in words is "nine hundred sixty-one billion, nine hundred three million, three hundred seventy-five thousand, six hundred eighty".