3894340178464 has 12 divisors (see below), whose sum is σ = 7666982226414. Its totient is φ = 1947170089216.

The previous prime is 3894340178461. The next prime is 3894340178501. The reversal of 3894340178464 is 4648710434983.

It can be written as a sum of positive squares in only one way, i.e., 2685862099600 + 1208478078864 = 1638860^2 + 1099308^2 .

It is not an unprimeable number, because it can be changed into a prime (3894340178461) 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 as a sum of consecutive naturals, namely, 60849065257 + ... + 60849065320.

Almost surely, 2^{3894340178464} is an apocalyptic number.

It is an amenable number.

3894340178464 is a deficient number, since it is larger than the sum of its proper divisors (3772642047950).

3894340178464 is a wasteful number, since it uses less digits than its factorization.

3894340178464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121698130587 (or 121698130579 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 61.

The spelling of 3894340178464 in words is "three trillion, eight hundred ninety-four billion, three hundred forty million, one hundred seventy-eight thousand, four hundred sixty-four".