1391082968458 has 8 divisors (see below), whose sum is σ = 2086643506752. Its totient is φ = 695535132876.

The previous prime is 1391082968423. The next prime is 1391082968477. The reversal of 1391082968458 is 8548692801931.

It is a happy number.

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

It is a super-2 number, since 2×1391082968458² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1391082968458.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 2897010 + ... + 3342877.

It is an arithmetic number, because the mean of its divisors is an integer number (260830438344).

Almost surely, 2^{1391082968458} is an apocalyptic number.

1391082968458 is a deficient number, since it is larger than the sum of its proper divisors (695560538294).

1391082968458 is a wasteful number, since it uses less digits than its factorization.

1391082968458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6351356.

The product of its (nonzero) digits is 29859840, while the sum is 64.

The spelling of 1391082968458 in words is "one trillion, three hundred ninety-one billion, eighty-two million, nine hundred sixty-eight thousand, four hundred fifty-eight".