1117845122839 has 4 divisors (see below), whose sum is σ = 1148057153224. Its totient is φ = 1087633092456.

The previous prime is 1117845122819. The next prime is 1117845122843. The reversal of 1117845122839 is 9382215487111.

It is a happy number.

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 1117845122839 - 2¹³ = 1117845114647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117845122819) 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, 15106015137 + ... + 15106015210.

It is an arithmetic number, because the mean of its divisors is an integer number (287014288306).

Almost surely, 2^{1117845122839} is an apocalyptic number.

1117845122839 is a deficient number, since it is larger than the sum of its proper divisors (30212030385).

1117845122839 is an equidigital number, since it uses as much as digits as its factorization.

1117845122839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30212030384.

The product of its digits is 967680, while the sum is 52.

The spelling of 1117845122839 in words is "one trillion, one hundred seventeen billion, eight hundred forty-five million, one hundred twenty-two thousand, eight hundred thirty-nine".