1118265819 has 16 divisors (see below), whose sum is σ = 1697289984. Its totient is φ = 648269600.

The previous prime is 1118265817. The next prime is 1118265829. The reversal of 1118265819 is 9185628111.

It is not a de Polignac number, because 1118265819 - 2¹ = 1118265817 is a prime.

It is a super-2 number, since 2×1118265819² = 2501036883887481522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1118265817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735912 + ... + 737429.

It is an arithmetic number, because the mean of its divisors is an integer number (106080624).

Almost surely, 2^1118265819 is an apocalyptic number.

1118265819 is a deficient number, since it is larger than the sum of its proper divisors (579024165).

1118265819 is a wasteful number, since it uses less digits than its factorization.

1118265819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473378.

The product of its digits is 34560, while the sum is 42.

The square root of 1118265819 is about 33440.4817399511. The cubic root of 1118265819 is about 1037.9625479784.

The spelling of 1118265819 in words is "one billion, one hundred eighteen million, two hundred sixty-five thousand, eight hundred nineteen".