9561680842 has 32 divisors (see below), whose sum is σ = 17310246912. Its totient is φ = 3872459184.

The previous prime is 9561680771. The next prime is 9561680873. The reversal of 9561680842 is 2480861659.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152158 + ... + 205609.

It is an arithmetic number, because the mean of its divisors is an integer number (540945216).

Almost surely, 2^9561680842 is an apocalyptic number.

9561680842 is a deficient number, since it is larger than the sum of its proper divisors (7748566070).

9561680842 is a wasteful number, since it uses less digits than its factorization.

9561680842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357882.

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 9561680842 is about 97783.8475516279. The cubic root of 9561680842 is about 2122.4855771603.

The spelling of 9561680842 in words is "nine billion, five hundred sixty-one million, six hundred eighty thousand, eight hundred forty-two".