1391141678968 has 8 divisors (see below), whose sum is σ = 2608390648080. Its totient is φ = 695570839480.

The previous prime is 1391141678963. The next prime is 1391141678987. The reversal of 1391141678968 is 8698761411931.

It is a happy number.

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

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391141678963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86946354928 + ... + 86946354943.

It is an arithmetic number, because the mean of its divisors is an integer number (326048831010).

Almost surely, 2^{1391141678968} is an apocalyptic number.

It is an amenable number.

1391141678968 is a deficient number, since it is larger than the sum of its proper divisors (1217248969112).

1391141678968 is a wasteful number, since it uses less digits than its factorization.

1391141678968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173892709877 (or 173892709873 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 64.

The spelling of 1391141678968 in words is "one trillion, three hundred ninety-one billion, one hundred forty-one million, six hundred seventy-eight thousand, nine hundred sixty-eight".