6915475878968 has 8 divisors (see below), whose sum is σ = 12966517273080. Its totient is φ = 3457737939480.

The previous prime is 6915475878959. The next prime is 6915475878991. The reversal of 6915475878968 is 8698785745196.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432217242428 + ... + 432217242443.

It is an arithmetic number, because the mean of its divisors is an integer number (1620814659135).

Almost surely, 2^{6915475878968} is an apocalyptic number.

It is an amenable number.

6915475878968 is a deficient number, since it is larger than the sum of its proper divisors (6051041394112).

6915475878968 is a wasteful number, since it uses less digits than its factorization.

6915475878968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864434484877 (or 864434484873 counting only the distinct ones).

The product of its digits is 7315660800, while the sum is 83.

The spelling of 6915475878968 in words is "six trillion, nine hundred fifteen billion, four hundred seventy-five million, eight hundred seventy-eight thousand, nine hundred sixty-eight".