9678857280 has 112 divisors (see below), whose sum is σ = 30862975104. Its totient is φ = 2569891840.

The previous prime is 9678857273. The next prime is 9678857281. The reversal of 9678857280 is 827588769.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (9678857281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202045 + ... + 245315.

Almost surely, 2^9678857280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9678857280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15431487552).

9678857280 is an abundant number, since it is smaller than the sum of its proper divisors (21184117824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9678857280 is a wasteful number, since it uses less digits than its factorization.

9678857280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43524 (or 43514 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 60.

The square root of 9678857280 is about 98381.1835667776. The cubic root of 9678857280 is about 2131.1206076305.

The spelling of 9678857280 in words is "nine billion, six hundred seventy-eight million, eight hundred fifty-seven thousand, two hundred eighty".