9689981242 has 4 divisors (see below), whose sum is σ = 14534971866. Its totient is φ = 4844990620.

The previous prime is 9689981233. The next prime is 9689981251. The reversal of 9689981242 is 2421899869.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (9689981233) and next prime (9689981251).

It can be written as a sum of positive squares in only one way, i.e., 5468750401 + 4221230841 = 73951^2 + 64971^2 .

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 as a sum of consecutive naturals, namely, 2422495309 + ... + 2422495312.

Almost surely, 2^9689981242 is an apocalyptic number.

9689981242 is a deficient number, since it is larger than the sum of its proper divisors (4844990624).

9689981242 is a wasteful number, since it uses less digits than its factorization.

9689981242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4844990623.

The product of its digits is 4478976, while the sum is 58.

The square root of 9689981242 is about 98437.7023401095. The cubic root of 9689981242 is about 2131.9367311240.

The spelling of 9689981242 in words is "nine billion, six hundred eighty-nine million, nine hundred eighty-one thousand, two hundred forty-two".