9642557670 has 16 divisors (see below), whose sum is σ = 23142138480. Its totient is φ = 2571348704.

The previous prime is 9642557599. The next prime is 9642557689. The reversal of 9642557670 is 767552469.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160709265 + ... + 160709324.

It is an arithmetic number, because the mean of its divisors is an integer number (1446383655).

Almost surely, 2^9642557670 is an apocalyptic number.

9642557670 is an abundant number, since it is smaller than the sum of its proper divisors (13499580810).

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

9642557670 is a wasteful number, since it uses less digits than its factorization.

9642557670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321418599.

The product of its (nonzero) digits is 3175200, while the sum is 51.

The square root of 9642557670 is about 98196.5257532057. The cubic root of 9642557670 is about 2128.4530834377.

The spelling of 9642557670 in words is "nine billion, six hundred forty-two million, five hundred fifty-seven thousand, six hundred seventy".