1179543798987 has 48 divisors (see below), whose sum is σ = 1658360726880. Its totient is φ = 745604020224.

The previous prime is 1179543798959. The next prime is 1179543798997. The reversal of 1179543798987 is 7898973459711.

It is not a de Polignac number, because 1179543798987 - 2¹⁰ = 1179543797963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1179543798997) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31056813 + ... + 31094769.

It is an arithmetic number, because the mean of its divisors is an integer number (34549181810).

Almost surely, 2^{1179543798987} is an apocalyptic number.

1179543798987 is a deficient number, since it is larger than the sum of its proper divisors (478816927893).

1179543798987 is a wasteful number, since it uses less digits than its factorization.

1179543798987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38240 (or 38211 counting only the distinct ones).

The product of its digits is 960180480, while the sum is 78.

The spelling of 1179543798987 in words is "one trillion, one hundred seventy-nine billion, five hundred forty-three million, seven hundred ninety-eight thousand, nine hundred eighty-seven".