1126918779 has 16 divisors (see below), whose sum is σ = 1717712640. Its totient is φ = 643764960.

The previous prime is 1126918769. The next prime is 1126918781. The reversal of 1126918779 is 9778196211.

It is a happy number.

It is not a de Polignac number, because 1126918779 - 2⁸ = 1126918523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1126918769) 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 15 ways as a sum of consecutive naturals, for example, 99877 + ... + 110585.

It is an arithmetic number, because the mean of its divisors is an integer number (107357040).

Almost surely, 2^1126918779 is an apocalyptic number.

1126918779 is a deficient number, since it is larger than the sum of its proper divisors (590793861).

1126918779 is a wasteful number, since it uses less digits than its factorization.

1126918779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15730.

The product of its digits is 381024, while the sum is 51.

The square root of 1126918779 is about 33569.6109450199. The cubic root of 1126918779 is about 1040.6328677020.

The spelling of 1126918779 in words is "one billion, one hundred twenty-six million, nine hundred eighteen thousand, seven hundred seventy-nine".