1866852000187 has 16 divisors (see below), whose sum is σ = 2016586275840. Its totient is φ = 1722916796832.

The previous prime is 1866852000107. The next prime is 1866852000191. The reversal of 1866852000187 is 7810002586681.

It is a cyclic number.

It is not a de Polignac number, because 1866852000187 - 2⁷ = 1866852000059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1866852000107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1983 + ... + 1932280.

It is an arithmetic number, because the mean of its divisors is an integer number (126036642240).

Almost surely, 2^{1866852000187} is an apocalyptic number.

1866852000187 is a deficient number, since it is larger than the sum of its proper divisors (149734275653).

1866852000187 is a wasteful number, since it uses less digits than its factorization.

1866852000187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935762.

The product of its (nonzero) digits is 1290240, while the sum is 52.

The spelling of 1866852000187 in words is "one trillion, eight hundred sixty-six billion, eight hundred fifty-two million, one hundred eighty-seven", and thus it is an aban number.