1391880904704 has 168 divisors, whose sum is σ = 4043244450960. Its totient is φ = 461363970048.

The previous prime is 1391880904693. The next prime is 1391880904717. The reversal of 1391880904704 is 4074090881931.

1391880904704 is a `hidden beast` number, since 1 + 3 + 9 + 1 + 8 + 80 + 90 + 470 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13144579 + ... + 13250045.

Almost surely, 2^{1391880904704} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1391880904704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2021622225480).

1391880904704 is an abundant number, since it is smaller than the sum of its proper divisors (2651363546256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1391880904704 is a wasteful number, since it uses less digits than its factorization.

1391880904704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105678 (or 105651 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 1391880904704 in words is "one trillion, three hundred ninety-one billion, eight hundred eighty million, nine hundred four thousand, seven hundred four".