1117208743438 has 4 divisors (see below), whose sum is σ = 1675813115160. Its totient is φ = 558604371718.

The previous prime is 1117208743423. The next prime is 1117208743451. The reversal of 1117208743438 is 8343478027111.

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

It is a junction number, because it is equal to n+sod(n) for n = 1117208743391 and 1117208743400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 279302185858 + ... + 279302185861.

It is an arithmetic number, because the mean of its divisors is an integer number (418953278790).

Almost surely, 2^{1117208743438} is an apocalyptic number.

1117208743438 is a deficient number, since it is larger than the sum of its proper divisors (558604371722).

1117208743438 is an equidigital number, since it uses as much as digits as its factorization.

1117208743438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558604371721.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 1117208743438 in words is "one trillion, one hundred seventeen billion, two hundred eight million, seven hundred forty-three thousand, four hundred thirty-eight".