9642995961 has 8 divisors (see below), whose sum is σ = 13068104064. Its totient is φ = 6323275920.

The previous prime is 9642995959. The next prime is 9642995963. The reversal of 9642995961 is 1695992469.

It is an interprime number because it is at equal distance from previous prime (9642995959) and next prime (9642995963).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9642995961 - 2¹ = 9642995959 is a prime.

It is a super-2 number, since 2×9642995961² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9642995895 and 9642995904.

It is not an unprimeable number, because it can be changed into a prime (9642995963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26346801 + ... + 26347166.

It is an arithmetic number, because the mean of its divisors is an integer number (1633513008).

Almost surely, 2^9642995961 is an apocalyptic number.

It is an amenable number.

9642995961 is a deficient number, since it is larger than the sum of its proper divisors (3425108103).

9642995961 is a wasteful number, since it uses less digits than its factorization.

9642995961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52694031.

The product of its digits is 9447840, while the sum is 60.

The square root of 9642995961 is about 98198.7574310388. The cubic root of 9642995961 is about 2128.4853317176.

The spelling of 9642995961 in words is "nine billion, six hundred forty-two million, nine hundred ninety-five thousand, nine hundred sixty-one".