2861140860 has 96 divisors (see below), whose sum is σ = 8954910720. Its totient is φ = 758378304.

The previous prime is 2861140829. The next prime is 2861140943. The reversal of 2861140860 is 680411682.

2861140860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2861140860² = 16372254041523079200, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74317 + ... + 106043.

It is an arithmetic number, because the mean of its divisors is an integer number (93280320).

Almost surely, 2^2861140860 is an apocalyptic number.

2861140860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2861140860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4477455360).

2861140860 is an abundant number, since it is smaller than the sum of its proper divisors (6093769860).

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

2861140860 is a wasteful number, since it uses less digits than its factorization.

2861140860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31912 (or 31904 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 2861140860 is about 53489.6332012101. The cubic root of 2861140860 is about 1419.6449651314.

The spelling of 2861140860 in words is "two billion, eight hundred sixty-one million, one hundred forty thousand, eight hundred sixty".