3964808865 has 8 divisors (see below), whose sum is σ = 6343694208. Its totient is φ = 2114564720.

The previous prime is 3964808857. The next prime is 3964808893. The reversal of 3964808865 is 5688084693.

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

It is not a de Polignac number, because 3964808865 - 2³ = 3964808857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132160281 + ... + 132160310.

It is an arithmetic number, because the mean of its divisors is an integer number (792961776).

Almost surely, 2^3964808865 is an apocalyptic number.

It is an amenable number.

3964808865 is a deficient number, since it is larger than the sum of its proper divisors (2378885343).

3964808865 is a wasteful number, since it uses less digits than its factorization.

3964808865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264320599.

The product of its (nonzero) digits is 9953280, while the sum is 57.

The square root of 3964808865 is about 62966.7282380147. The cubic root of 3964808865 is about 1582.7321292970.

The spelling of 3964808865 in words is "three billion, nine hundred sixty-four million, eight hundred eight thousand, eight hundred sixty-five".