3861066729 has 8 divisors (see below), whose sum is σ = 5544095872. Its totient is φ = 2376041040.

The previous prime is 3861066697. The next prime is 3861066739. The reversal of 3861066729 is 9276601683.

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

It is not a de Polignac number, because 3861066729 - 2⁵ = 3861066697 is a prime.

It is a super-3 number, since 3×3861066729³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3861066739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49500817 + ... + 49500894.

It is an arithmetic number, because the mean of its divisors is an integer number (693011984).

Almost surely, 2^3861066729 is an apocalyptic number.

3861066729 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3861066729 is a deficient number, since it is larger than the sum of its proper divisors (1683029143).

3861066729 is a wasteful number, since it uses less digits than its factorization.

3861066729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99001727.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 3861066729 is about 62137.4824803838. The cubic root of 3861066729 is about 1568.8054972213.

The spelling of 3861066729 in words is "three billion, eight hundred sixty-one million, sixty-six thousand, seven hundred twenty-nine".