3872787646859 has 2 divisors, whose sum is σ = 3872787646860. Its totient is φ = 3872787646858.

The previous prime is 3872787646853. The next prime is 3872787646879. The reversal of 3872787646859 is 9586467872783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3872787646859 - 2¹⁶ = 3872787581323 is a prime.

It is a super-3 number, since 3×3872787646859³ (a number of 39 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (3872787646853) 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 as a sum of consecutive naturals, namely, 1936393823429 + 1936393823430.

It is an arithmetic number, because the mean of its divisors is an integer number (1936393823430).

Almost surely, 2^{3872787646859} is an apocalyptic number.

3872787646859 is a deficient number, since it is larger than the sum of its proper divisors (1).

3872787646859 is an equidigital number, since it uses as much as digits as its factorization.

3872787646859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6827950080, while the sum is 80.

The spelling of 3872787646859 in words is "three trillion, eight hundred seventy-two billion, seven hundred eighty-seven million, six hundred forty-six thousand, eight hundred fifty-nine".