3981166079 has 10 divisors (see below), whose sum is σ = 4379271600. Its totient is φ = 3619228580.

The previous prime is 3981166043. The next prime is 3981166087. The reversal of 3981166079 is 9706611893.

It is a de Polignac number, because none of the positive numbers 2^k-3981166079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3981166009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 121319 + ... + 150600.

It is an arithmetic number, because the mean of its divisors is an integer number (437927160).

Almost surely, 2^3981166079 is an apocalyptic number.

3981166079 is a deficient number, since it is larger than the sum of its proper divisors (398105521).

3981166079 is an frugal number, since it uses more digits than its factorization.

3981166079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271963 (or 271930 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 3981166079 is about 63096.4823028986. The cubic root of 3981166079 is about 1584.9057159465.

It can be divided in two parts, 39 and 81166079, that added together give a palindrome (81166118).

The spelling of 3981166079 in words is "three billion, nine hundred eighty-one million, one hundred sixty-six thousand, seventy-nine".