1183802993987 has 4 divisors (see below), whose sum is σ = 1184188977816. Its totient is φ = 1183417010160.

The previous prime is 1183802993983. The next prime is 1183802994047. The reversal of 1183802993987 is 7893992083811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1183802993987 - 2² = 1183802993983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1183802993983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192987314 + ... + 192993447.

It is an arithmetic number, because the mean of its divisors is an integer number (296047244454).

Almost surely, 2^{1183802993987} is an apocalyptic number.

1183802993987 is a deficient number, since it is larger than the sum of its proper divisors (385983829).

1183802993987 is an equidigital number, since it uses as much as digits as its factorization.

1183802993987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385983828.

The product of its (nonzero) digits is 47029248, while the sum is 68.

The spelling of 1183802993987 in words is "one trillion, one hundred eighty-three billion, eight hundred two million, nine hundred ninety-three thousand, nine hundred eighty-seven".