1115815032793 has 2 divisors, whose sum is σ = 1115815032794. Its totient is φ = 1115815032792.

The previous prime is 1115815032769. The next prime is 1115815032811. The reversal of 1115815032793 is 3972305185111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 918361889344 + 197453143449 = 958312^2 + 444357^2 .

It is an emirp because it is prime and its reverse (3972305185111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1115815032793 - 2²¹ = 1115812935641 is a prime.

It is not a weakly prime, because it can be changed into another prime (1115815032743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557907516396 + 557907516397.

It is an arithmetic number, because the mean of its divisors is an integer number (557907516397).

Almost surely, 2^{1115815032793} is an apocalyptic number.

It is an amenable number.

1115815032793 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115815032793 is an equidigital number, since it uses as much as digits as its factorization.

1115815032793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 46.

The spelling of 1115815032793 in words is "one trillion, one hundred fifteen billion, eight hundred fifteen million, thirty-two thousand, seven hundred ninety-three".