1155346423779 has 8 divisors (see below), whose sum is σ = 1545033003280. Its totient is φ = 767945396736.

The previous prime is 1155346423697. The next prime is 1155346423789. The reversal of 1155346423779 is 9773246435511.

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

It is not a de Polignac number, because 1155346423779 - 2⁸ = 1155346423523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155346423789) 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 7 ways as a sum of consecutive naturals, for example, 571386934 + ... + 571388955.

It is an arithmetic number, because the mean of its divisors is an integer number (193129125410).

Almost surely, 2^{1155346423779} is an apocalyptic number.

1155346423779 is a deficient number, since it is larger than the sum of its proper divisors (389686579501).

1155346423779 is a wasteful number, since it uses less digits than its factorization.

1155346423779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142776229.

The product of its digits is 19051200, while the sum is 57.

The spelling of 1155346423779 in words is "one trillion, one hundred fifty-five billion, three hundred forty-six million, four hundred twenty-three thousand, seven hundred seventy-nine".