2068861860 has 72 divisors (see below), whose sum is σ = 6758289720. Its totient is φ = 509257728.

The previous prime is 2068861859. The next prime is 2068861931. The reversal of 2068861860 is 681688602.

2068861860 is a `hidden beast` number, since 20 + 6 + 8 + 8 + 618 + 6 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 466300836 + 1602561024 = 21594^2 + 40032^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 439725 + ... + 444404.

It is an arithmetic number, because the mean of its divisors is an integer number (93865135).

Almost surely, 2^2068861860 is an apocalyptic number.

2068861860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2068861860 is an abundant number, since it is smaller than the sum of its proper divisors (4689427860).

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

2068861860 is a wasteful number, since it uses less digits than its factorization.

2068861860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884157 (or 884152 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 2068861860 is about 45484.7431563596. The cubic root of 2068861860 is about 1274.2182797533.

The spelling of 2068861860 in words is "two billion, sixty-eight million, eight hundred sixty-one thousand, eight hundred sixty".