9642159905 has 32 divisors (see below), whose sum is σ = 13284864000. Its totient is φ = 6581195712.

The previous prime is 9642159893. The next prime is 9642159907. The reversal of 9642159905 is 5099512469.

It is not a de Polignac number, because 9642159905 - 2¹⁰ = 9642158881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9642159907) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12976964 + ... + 12977706.

It is an arithmetic number, because the mean of its divisors is an integer number (415152000).

Almost surely, 2^9642159905 is an apocalyptic number.

It is an amenable number.

9642159905 is a deficient number, since it is larger than the sum of its proper divisors (3642704095).

9642159905 is a wasteful number, since it uses less digits than its factorization.

9642159905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973.

The product of its (nonzero) digits is 874800, while the sum is 50.

The square root of 9642159905 is about 98194.5003806221. The cubic root of 9642159905 is about 2128.4238161067.

The spelling of 9642159905 in words is "nine billion, six hundred forty-two million, one hundred fifty-nine thousand, nine hundred five".