1391141678969 has 8 divisors (see below), whose sum is σ = 1623703358208. Its totient is φ = 1167036788160.

The previous prime is 1391141678963. The next prime is 1391141678987. The reversal of 1391141678969 is 9698761411931.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1391141678969 is a prime.

It is a super-2 number, since 2×1391141678969² (a number of 25 digits) contains 22 as substring.

It is a Duffinian 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 in 7 ways as a sum of consecutive naturals, for example, 2114196752 + ... + 2114197409.

It is an arithmetic number, because the mean of its divisors is an integer number (202962919776).

Almost surely, 2^{1391141678969} is an apocalyptic number.

It is an amenable number.

1391141678969 is a deficient number, since it is larger than the sum of its proper divisors (232561679239).

1391141678969 is an equidigital number, since it uses as much as digits as its factorization.

1391141678969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4228394215.

The product of its digits is 17635968, while the sum is 65.

The spelling of 1391141678969 in words is "one trillion, three hundred ninety-one billion, one hundred forty-one million, six hundred seventy-eight thousand, nine hundred sixty-nine".