9878877287 has 8 divisors (see below), whose sum is σ = 9971858160. Its totient is φ = 9786162880.

The previous prime is 9878877277. The next prime is 9878877311. The reversal of 9878877287 is 7827788789.

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

It is a cyclic number.

It is not a de Polignac number, because 9878877287 - 2¹⁸ = 9878615143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9878877287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9878877257) 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, 8273 + ... + 140805.

It is an arithmetic number, because the mean of its divisors is an integer number (1246482270).

Almost surely, 2^9878877287 is an apocalyptic number.

9878877287 is a deficient number, since it is larger than the sum of its proper divisors (92980873).

9878877287 is a wasteful number, since it uses less digits than its factorization.

9878877287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133233.

The product of its digits is 177020928, while the sum is 71.

The square root of 9878877287 is about 99392.5414052785. The cubic root of 9878877287 is about 2145.7009669793.

The spelling of 9878877287 in words is "nine billion, eight hundred seventy-eight million, eight hundred seventy-seven thousand, two hundred eighty-seven".