1118347775 has 12 divisors (see below), whose sum is σ = 1420575744. Its totient is φ = 872856000.

The previous prime is 1118347759. The next prime is 1118347807. The reversal of 1118347775 is 5777438111.

It is not a de Polignac number, because 1118347775 - 2⁴ = 1118347759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 544511 + ... + 546560.

It is an arithmetic number, because the mean of its divisors is an integer number (118381312).

Almost surely, 2^1118347775 is an apocalyptic number.

1118347775 is a deficient number, since it is larger than the sum of its proper divisors (302227969).

1118347775 is a wasteful number, since it uses less digits than its factorization.

1118347775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091122 (or 1091117 counting only the distinct ones).

The product of its digits is 164640, while the sum is 44.

The square root of 1118347775 is about 33441.7071185070. The cubic root of 1118347775 is about 1037.9879042575.

The spelling of 1118347775 in words is "one billion, one hundred eighteen million, three hundred forty-seven thousand, seven hundred seventy-five".