2143079380866 has 16 divisors (see below), whose sum is σ = 4288047796800. Its totient is φ = 714044954448.

The previous prime is 2143079380859. The next prime is 2143079380873. The reversal of 2143079380866 is 6680839703412.

It is an interprime number because it is at equal distance from previous prime (2143079380859) and next prime (2143079380873).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78695046 + ... + 78722273.

It is an arithmetic number, because the mean of its divisors is an integer number (268002987300).

Almost surely, 2^{2143079380866} is an apocalyptic number.

2143079380866 is an abundant number, since it is smaller than the sum of its proper divisors (2144968415934).

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

2143079380866 is a wasteful number, since it uses less digits than its factorization.

2143079380866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157419593.

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 2143079380866 in words is "two trillion, one hundred forty-three billion, seventy-nine million, three hundred eighty thousand, eight hundred sixty-six".