2871823643618 has 16 divisors (see below), whose sum is σ = 4537896264000. Its totient is φ = 1359306151632.

The previous prime is 2871823643617. The next prime is 2871823643683. The reversal of 2871823643618 is 8163463281782.

It is not an unprimeable number, because it can be changed into a prime (2871823643617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28598213 + ... + 28698456.

It is an arithmetic number, because the mean of its divisors is an integer number (283618516500).

Almost surely, 2^{2871823643618} is an apocalyptic number.

2871823643618 is a deficient number, since it is larger than the sum of its proper divisors (1666072620382).

2871823643618 is a wasteful number, since it uses less digits than its factorization.

2871823643618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57298009.

The product of its digits is 18579456, while the sum is 59.

The spelling of 2871823643618 in words is "two trillion, eight hundred seventy-one billion, eight hundred twenty-three million, six hundred forty-three thousand, six hundred eighteen".