3840723400069 has 4 divisors (see below), whose sum is σ = 3944526735244. Its totient is φ = 3736920064896.

The previous prime is 3840723400039. The next prime is 3840723400081. The reversal of 3840723400069 is 9600043270483.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1675631869444 + 2165091530625 = 1294462^2 + 1471425^2 .

It is a cyclic number.

It is not a de Polignac number, because 3840723400069 - 2²³ = 3840715011461 is a prime.

It is a super-2 number, since 2×3840723400069² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3840723400039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51901667532 + ... + 51901667605.

It is an arithmetic number, because the mean of its divisors is an integer number (986131683811).

Almost surely, 2^{3840723400069} is an apocalyptic number.

It is an amenable number.

3840723400069 is a deficient number, since it is larger than the sum of its proper divisors (103803335175).

3840723400069 is a wasteful number, since it uses less digits than its factorization.

3840723400069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103803335174.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 3840723400069 in words is "three trillion, eight hundred forty billion, seven hundred twenty-three million, four hundred thousand, sixty-nine".