1087993506817 has 8 divisors (see below), whose sum is σ = 1244707012736. Its totient is φ = 931601466432.

The previous prime is 1087993506773. The next prime is 1087993506823. The reversal of 1087993506817 is 7186053997801.

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

It is a de Polignac number, because none of the positive numbers 2^k-1087993506817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1087993506827) 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, 80359128 + ... + 80372665.

It is an arithmetic number, because the mean of its divisors is an integer number (155588376592).

Almost surely, 2^{1087993506817} is an apocalyptic number.

It is an amenable number.

1087993506817 is a deficient number, since it is larger than the sum of its proper divisors (156713505919).

1087993506817 is an equidigital number, since it uses as much as digits as its factorization.

1087993506817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160732767.

The product of its (nonzero) digits is 22861440, while the sum is 64.

The spelling of 1087993506817 in words is "one trillion, eighty-seven billion, nine hundred ninety-three million, five hundred six thousand, eight hundred seventeen".