1117729240887 has 16 divisors (see below), whose sum is σ = 1703387897600. Its totient is φ = 638634385152.

The previous prime is 1117729240871. The next prime is 1117729240889. The reversal of 1117729240887 is 7880429277111.

It is a happy number.

It is not a de Polignac number, because 1117729240887 - 2⁴ = 1117729240871 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 (1117729240889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2632762 + ... + 3027687.

It is an arithmetic number, because the mean of its divisors is an integer number (106461743600).

Almost surely, 2^{1117729240887} is an apocalyptic number.

1117729240887 is a deficient number, since it is larger than the sum of its proper divisors (585658656713).

1117729240887 is an equidigital number, since it uses as much as digits as its factorization.

1117729240887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5669862.

The product of its (nonzero) digits is 3161088, while the sum is 57.

The spelling of 1117729240887 in words is "one trillion, one hundred seventeen billion, seven hundred twenty-nine million, two hundred forty thousand, eight hundred eighty-seven".