1179986857984 has 117 divisors (see below), whose sum is σ = 2595386081379. Its totient is φ = 536010055680.

The previous prime is 1179986857969. The next prime is 1179986858003. The reversal of 1179986857984 is 4897586899711.

The square root of 1179986857984 is 1086272.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1179986857898 and 1179986857907.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 764734717 + ... + 764736259.

Almost surely, 2^{1179986857984} is an apocalyptic number.

1179986857984 is the 1086272-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1179986857984

1179986857984 is an abundant number, since it is smaller than the sum of its proper divisors (1415399223395).

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

1179986857984 is an frugal number, since it uses more digits than its factorization.

1179986857984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132 (or 1556 counting only the distinct ones).

The product of its digits is 2194698240, while the sum is 82.

The spelling of 1179986857984 in words is "one trillion, one hundred seventy-nine billion, nine hundred eighty-six million, eight hundred fifty-seven thousand, nine hundred eighty-four".