1185798742815 has 8 divisors (see below), whose sum is σ = 1897277988528. Its totient is φ = 632425996160.

The previous prime is 1185798742801. The next prime is 1185798742823. The reversal of 1185798742815 is 5182478975811.

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

It is not a de Polignac number, because 1185798742815 - 2⁸ = 1185798742559 is a prime.

It is a super-2 number, since 2×1185798742815² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39526624746 + ... + 39526624775.

It is an arithmetic number, because the mean of its divisors is an integer number (237159748566).

Almost surely, 2^{1185798742815} is an apocalyptic number.

1185798742815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1185798742815 is a deficient number, since it is larger than the sum of its proper divisors (711479245713).

1185798742815 is an equidigital number, since it uses as much as digits as its factorization.

1185798742815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79053249529.

The product of its digits is 45158400, while the sum is 66.

The spelling of 1185798742815 in words is "one trillion, one hundred eighty-five billion, seven hundred ninety-eight million, seven hundred forty-two thousand, eight hundred fifteen".