1118371779 has 96 divisors (see below), whose sum is σ = 2003828736. Its totient is φ = 609910560.

The previous prime is 1118371763. The next prime is 1118371781. The reversal of 1118371779 is 9771738111.

It is not a de Polignac number, because 1118371779 - 2⁴ = 1118371763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1118371729) by changing a digit.

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 in 95 ways as a sum of consecutive naturals, for example, 6696754 + ... + 6696920.

It is an arithmetic number, because the mean of its divisors is an integer number (20873216).

Almost surely, 2^1118371779 is an apocalyptic number.

1118371779 is a deficient number, since it is larger than the sum of its proper divisors (885456957).

1118371779 is a wasteful number, since it uses less digits than its factorization.

1118371779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347 (or 335 counting only the distinct ones).

The product of its digits is 74088, while the sum is 45.

The square root of 1118371779 is about 33442.0660097429. The cubic root of 1118371779 is about 1037.9953305948.

The spelling of 1118371779 in words is "one billion, one hundred eighteen million, three hundred seventy-one thousand, seven hundred seventy-nine".