9877211242 has 8 divisors (see below), whose sum is σ = 15687335556. Its totient is φ = 4648099392.

The previous prime is 9877211219. The next prime is 9877211243. The reversal of 9877211242 is 2421127789.

It can be written as a sum of positive squares in 2 ways, for example, as 9720185281 + 157025961 = 98591^2 + 12531^2 .

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

It is not an unprimeable number, because it can be changed into a prime (9877211243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145253073 + ... + 145253140.

Almost surely, 2^9877211242 is an apocalyptic number.

9877211242 is a deficient number, since it is larger than the sum of its proper divisors (5810124314).

9877211242 is a wasteful number, since it uses less digits than its factorization.

9877211242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290506232.

The product of its digits is 112896, while the sum is 43.

The square root of 9877211242 is about 99384.1599149482. The cubic root of 9877211242 is about 2145.5803380440.

The spelling of 9877211242 in words is "nine billion, eight hundred seventy-seven million, two hundred eleven thousand, two hundred forty-two".