3967865079089 has 4 divisors (see below), whose sum is σ = 3968730862656. Its totient is φ = 3966999295524.

The previous prime is 3967865079067. The next prime is 3967865079107. The reversal of 3967865079089 is 9809705687693.

3967865079089 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3967865079089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3967895079089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432884909 + ... + 432894074.

It is an arithmetic number, because the mean of its divisors is an integer number (992182715664).

Almost surely, 2^{3967865079089} is an apocalyptic number.

It is an amenable number.

3967865079089 is a deficient number, since it is larger than the sum of its proper divisors (865783567).

3967865079089 is an equidigital number, since it uses as much as digits as its factorization.

3967865079089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865783566.

The product of its (nonzero) digits is 1234517760, while the sum is 77.

The spelling of 3967865079089 in words is "three trillion, nine hundred sixty-seven billion, eight hundred sixty-five million, seventy-nine thousand, eighty-nine".