3813727767161 has 8 divisors (see below), whose sum is σ = 4107771846024. Its totient is φ = 3519780888960.

The previous prime is 3813727767127. The next prime is 3813727767173. The reversal of 3813727767161 is 1617677273183.

It can be written as a sum of positive squares in 4 ways, for example, as 365486748025 + 3448241019136 = 604555^2 + 1856944^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3813727767161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3813727767161.

It is not an unprimeable number, because it can be changed into a prime (3813727797161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24218660 + ... + 24375621.

It is an arithmetic number, because the mean of its divisors is an integer number (513471480753).

Almost surely, 2^{3813727767161} is an apocalyptic number.

It is an amenable number.

3813727767161 is a deficient number, since it is larger than the sum of its proper divisors (294044078863).

3813727767161 is a wasteful number, since it uses less digits than its factorization.

3813727767161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48600331.

The product of its digits is 12446784, while the sum is 59.

The spelling of 3813727767161 in words is "three trillion, eight hundred thirteen billion, seven hundred twenty-seven million, seven hundred sixty-seven thousand, one hundred sixty-one".