1109351779 has 8 divisors (see below), whose sum is σ = 1178947008. Its totient is φ = 1040238720.

The previous prime is 1109351777. The next prime is 1109351791. The reversal of 1109351779 is 9771539011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1109351779 - 2¹ = 1109351777 is a prime.

It is a super-2 number, since 2×1109351779² = 2461322739140929682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1109351777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115792 + ... + 125005.

It is an arithmetic number, because the mean of its divisors is an integer number (147368376).

Almost surely, 2^1109351779 is an apocalyptic number.

1109351779 is a deficient number, since it is larger than the sum of its proper divisors (69595229).

1109351779 is a wasteful number, since it uses less digits than its factorization.

1109351779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241085.

The product of its (nonzero) digits is 59535, while the sum is 43.

The square root of 1109351779 is about 33306.9328969210. The cubic root of 1109351779 is about 1035.1972144750.

The spelling of 1109351779 in words is "one billion, one hundred nine million, three hundred fifty-one thousand, seven hundred seventy-nine".