9877551212 has 6 divisors (see below), whose sum is σ = 17285714628. Its totient is φ = 4938775604.

The previous prime is 9877551197. The next prime is 9877551287. The reversal of 9877551212 is 2121557789.

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 as a sum of consecutive naturals, namely, 1234693898 + ... + 1234693905.

It is an arithmetic number, because the mean of its divisors is an integer number (2880952438).

Almost surely, 2^9877551212 is an apocalyptic number.

It is an amenable number.

9877551212 is a deficient number, since it is larger than the sum of its proper divisors (7408163416).

9877551212 is a wasteful number, since it uses less digits than its factorization.

9877551212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469387807 (or 2469387805 counting only the distinct ones).

The product of its digits is 352800, while the sum is 47.

The square root of 9877551212 is about 99385.8702834563. The cubic root of 9877551212 is about 2145.6049544585.

The spelling of 9877551212 in words is "nine billion, eight hundred seventy-seven million, five hundred fifty-one thousand, two hundred twelve".