1773049645 has 8 divisors (see below), whose sum is σ = 2220166656. Its totient is φ = 1356768336.

The previous prime is 1773049639. The next prime is 1773049661. The reversal of 1773049645 is 5469403771.

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 1773049645 - 2⁵ = 1773049613 is a prime.

It is a super-3 number, since 3×1773049645³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1773049595 and 1773049604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7708797 + ... + 7709026.

It is an arithmetic number, because the mean of its divisors is an integer number (277520832).

Almost surely, 2^1773049645 is an apocalyptic number.

It is an amenable number.

1773049645 is a deficient number, since it is larger than the sum of its proper divisors (447117011).

1773049645 is a wasteful number, since it uses less digits than its factorization.

1773049645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15417851.

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 1773049645 is about 42107.5960486941. The cubic root of 1773049645 is about 1210.3388266340.

The spelling of 1773049645 in words is "one billion, seven hundred seventy-three million, forty-nine thousand, six hundred forty-five".