3864727222693 has 2 divisors, whose sum is σ = 3864727222694. Its totient is φ = 3864727222692.

The previous prime is 3864727222673. The next prime is 3864727222723. The reversal of 3864727222693 is 3962227274683.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2822729289604 + 1041997933089 = 1680098^2 + 1020783^2 .

It is an emirp because it is prime and its reverse (3962227274683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3864727222693 - 2¹³ = 3864727214501 is a prime.

It is a super-2 number, since 2×3864727222693² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3864727222673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1932363611346 + 1932363611347.

It is an arithmetic number, because the mean of its divisors is an integer number (1932363611347).

Almost surely, 2^{3864727222693} is an apocalyptic number.

It is an amenable number.

3864727222693 is a deficient number, since it is larger than the sum of its proper divisors (1).

3864727222693 is an equidigital number, since it uses as much as digits as its factorization.

3864727222693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73156608, while the sum is 61.

The spelling of 3864727222693 in words is "three trillion, eight hundred sixty-four billion, seven hundred twenty-seven million, two hundred twenty-two thousand, six hundred ninety-three".