1866973105874 has 32 divisors (see below), whose sum is σ = 2902336557120. Its totient is φ = 900245050432.

The previous prime is 1866973105871. The next prime is 1866973105891. The reversal of 1866973105874 is 4785013796681.

It is a self number, because there is not a number n which added to its sum of digits gives 1866973105874.

It is not an unprimeable number, because it can be changed into a prime (1866973105871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1194617 + ... + 2271795.

It is an arithmetic number, because the mean of its divisors is an integer number (90698017410).

Almost surely, 2^{1866973105874} is an apocalyptic number.

1866973105874 is a deficient number, since it is larger than the sum of its proper divisors (1035363451246).

1866973105874 is a wasteful number, since it uses less digits than its factorization.

1866973105874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077514.

The product of its (nonzero) digits is 60963840, while the sum is 65.

The spelling of 1866973105874 in words is "one trillion, eight hundred sixty-six billion, nine hundred seventy-three million, one hundred five thousand, eight hundred seventy-four".