1117208743447 has 4 divisors (see below), whose sum is σ = 1117794591576. Its totient is φ = 1116622895320.

The previous prime is 1117208743423. The next prime is 1117208743451. The reversal of 1117208743447 is 7443478027111.

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 1117208743447 - 2⁷ = 1117208743319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1117208743447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117208743487) 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, 292921204 + ... + 292925017.

It is an arithmetic number, because the mean of its divisors is an integer number (279448647894).

Almost surely, 2^{1117208743447} is an apocalyptic number.

1117208743447 is a deficient number, since it is larger than the sum of its proper divisors (585848129).

1117208743447 is an equidigital number, since it uses as much as digits as its factorization.

1117208743447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585848128.

The product of its (nonzero) digits is 1053696, while the sum is 49.

The spelling of 1117208743447 in words is "one trillion, one hundred seventeen billion, two hundred eight million, seven hundred forty-three thousand, four hundred forty-seven".