9621561606692 has 24 divisors (see below), whose sum is σ = 19349438821440. Its totient is φ = 4100744486880.

The previous prime is 9621561606689. The next prime is 9621561606809. The reversal of 9621561606692 is 2966061651269.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 949241342 + ... + 949251477.

It is an arithmetic number, because the mean of its divisors is an integer number (806226617560).

Almost surely, 2^{9621561606692} is an apocalyptic number.

It is an amenable number.

9621561606692 is an abundant number, since it is smaller than the sum of its proper divisors (9727877214748).

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

9621561606692 is a wasteful number, since it uses less digits than its factorization.

9621561606692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898493011 (or 1898493009 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 59.

The spelling of 9621561606692 in words is "nine trillion, six hundred twenty-one billion, five hundred sixty-one million, six hundred six thousand, six hundred ninety-two".