4115148987889 has 9 divisors (see below), whose sum is σ = 4121030125387. Its totient is φ = 4109276240104.

The previous prime is 4115148987877. The next prime is 4115148987907. The reversal of 4115148987889 is 9887898415114.

The square root of 4115148987889 is 2028583.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 773638107489 + 3341510880400 = 879567^2 + 1827980^2 .

It is not a de Polignac number, because 4115148987889 - 2¹⁷ = 4115148856817 is a prime.

It is a super-2 number, since 2×4115148987889² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4115148987589) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2407927167 + ... + 2407928875.

Almost surely, 2^{4115148987889} is an apocalyptic number.

4115148987889 is the 2028583-rd square number.

4115148987889 is the 1014292-nd centered octagonal number.

It is an amenable number.

4115148987889 is a deficient number, since it is larger than the sum of its proper divisors (5881137498).

4115148987889 is an frugal number, since it uses more digits than its factorization.

4115148987889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5792 (or 2896 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 73.

The spelling of 4115148987889 in words is "four trillion, one hundred fifteen billion, one hundred forty-eight million, nine hundred eighty-seven thousand, eight hundred eighty-nine".