1118946579 has 16 divisors (see below), whose sum is σ = 1595337120. Its totient is φ = 695129600.

The previous prime is 1118946557. The next prime is 1118946617. The reversal of 1118946579 is 9756498111.

It is a cyclic number.

It is not a de Polignac number, because 1118946579 - 2¹¹ = 1118944531 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (1118946509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103464 + ... + 113765.

It is an arithmetic number, because the mean of its divisors is an integer number (99708570).

Almost surely, 2^1118946579 is an apocalyptic number.

1118946579 is a deficient number, since it is larger than the sum of its proper divisors (476390541).

1118946579 is a wasteful number, since it uses less digits than its factorization.

1118946579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217350.

The product of its digits is 544320, while the sum is 51.

The square root of 1118946579 is about 33450.6588724348. The cubic root of 1118946579 is about 1038.1731300051.

The spelling of 1118946579 in words is "one billion, one hundred eighteen million, nine hundred forty-six thousand, five hundred seventy-nine".