2158773361 has 8 divisors (see below), whose sum is σ = 2196136800. Its totient is φ = 2121435840.

The previous prime is 2158773359. The next prime is 2158773367. The reversal of 2158773361 is 1633778512.

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 2158773361 - 2¹ = 2158773359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2158773367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244105 + ... + 252793.

It is an arithmetic number, because the mean of its divisors is an integer number (274517100).

Almost surely, 2^2158773361 is an apocalyptic number.

It is an amenable number.

2158773361 is a deficient number, since it is larger than the sum of its proper divisors (37363439).

2158773361 is an equidigital number, since it uses as much as digits as its factorization.

2158773361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12959.

The product of its digits is 211680, while the sum is 43.

The square root of 2158773361 is about 46462.6017459203. The cubic root of 2158773361 is about 1292.4160719796.

The spelling of 2158773361 in words is "two billion, one hundred fifty-eight million, seven hundred seventy-three thousand, three hundred sixty-one".