1766366473 has 8 divisors (see below), whose sum is σ = 1806998600. Its totient is φ = 1726178688.

The previous prime is 1766366431. The next prime is 1766366479. The reversal of 1766366473 is 3746636671.

It can be written as a sum of positive squares in 4 ways, for example, as 997801744 + 768564729 = 31588^2 + 27723^2 .

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 1766366473 - 2⁹ = 1766365961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1766366479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103038 + ... + 118951.

It is an arithmetic number, because the mean of its divisors is an integer number (225874825).

Almost surely, 2^1766366473 is an apocalyptic number.

It is an amenable number.

1766366473 is a deficient number, since it is larger than the sum of its proper divisors (40632127).

1766366473 is a wasteful number, since it uses less digits than its factorization.

1766366473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222171.

The product of its digits is 2286144, while the sum is 49.

The square root of 1766366473 is about 42028.1628553997. The cubic root of 1766366473 is about 1208.8161982619.

The spelling of 1766366473 in words is "one billion, seven hundred sixty-six million, three hundred sixty-six thousand, four hundred seventy-three".