8861280120 has 480 divisors, whose sum is σ = 37425880800. Its totient is φ = 1840734720.

The previous prime is 8861280119. The next prime is 8861280121. The reversal of 8861280120 is 210821688.

It is an interprime number because it is at equal distance from previous prime (8861280119) and next prime (8861280121).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8861280121) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2742666 + ... + 2745894.

It is an arithmetic number, because the mean of its divisors is an integer number (77970585).

Almost surely, 2^8861280120 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 8861280120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18712940400).

8861280120 is an abundant number, since it is smaller than the sum of its proper divisors (28564600680).

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

8861280120 is a wasteful number, since it uses less digits than its factorization.

8861280120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3281 (or 3257 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 8861280120 is about 94134.3726807589. The cubic root of 8861280120 is about 2069.3414414193.

The spelling of 8861280120 in words is "eight billion, eight hundred sixty-one million, two hundred eighty thousand, one hundred twenty".