961913861784 has 48 divisors (see below), whose sum is σ = 2649339037800. Its totient is φ = 315203410944.

The previous prime is 961913861749. The next prime is 961913861789. The reversal of 961913861784 is 487168319169.

961913861784 is a `hidden beast` number, since 9 + 6 + 1 + 9 + 1 + 3 + 8 + 617 + 8 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961913861789) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 113215369 + ... + 113223864.

Almost surely, 2^961913861784 is an apocalyptic number.

It is an amenable number.

961913861784 is an abundant number, since it is smaller than the sum of its proper divisors (1687425176016).

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

961913861784 is a wasteful number, since it uses less digits than its factorization.

961913861784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226439304 (or 226439297 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 63.

The spelling of 961913861784 in words is "nine hundred sixty-one billion, nine hundred thirteen million, eight hundred sixty-one thousand, seven hundred eighty-four".