3862440447181 has 2 divisors, whose sum is σ = 3862440447182. Its totient is φ = 3862440447180.

The previous prime is 3862440447157. The next prime is 3862440447263. The reversal of 3862440447181 is 1817440442683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3815029304100 + 47411143081 = 1953210^2 + 217741^2 .

It is a cyclic number.

It is not a de Polignac number, because 3862440447181 - 2⁷ = 3862440447053 is a prime.

It is a super-2 number, since 2×3862440447181² (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 (3862440447101) 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, 1931220223590 + 1931220223591.

It is an arithmetic number, because the mean of its divisors is an integer number (1931220223591).

Almost surely, 2^{3862440447181} is an apocalyptic number.

It is an amenable number.

3862440447181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3862440447181 is an equidigital number, since it uses as much as digits as its factorization.

3862440447181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4128768, while the sum is 52.

The spelling of 3862440447181 in words is "three trillion, eight hundred sixty-two billion, four hundred forty million, four hundred forty-seven thousand, one hundred eighty-one".