1773485465 has 4 divisors (see below), whose sum is σ = 2128182564. Its totient is φ = 1418788368.

The previous prime is 1773485447. The next prime is 1773485473. The reversal of 1773485465 is 5645843771.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5645843771 = 409 ⋅13804019.

It can be written as a sum of positive squares in 2 ways, for example, as 855153049 + 918332416 = 29243^2 + 30304^2 .

It is a cyclic number.

It is not a de Polignac number, because 1773485465 - 2¹⁰ = 1773484441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177348542 + ... + 177348551.

It is an arithmetic number, because the mean of its divisors is an integer number (532045641).

Almost surely, 2^1773485465 is an apocalyptic number.

It is an amenable number.

1773485465 is a deficient number, since it is larger than the sum of its proper divisors (354697099).

1773485465 is an equidigital number, since it uses as much as digits as its factorization.

1773485465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354697098.

The product of its digits is 2822400, while the sum is 50.

The square root of 1773485465 is about 42112.7708064905. The cubic root of 1773485465 is about 1210.4379866049.

The spelling of 1773485465 in words is "one billion, seven hundred seventy-three million, four hundred eighty-five thousand, four hundred sixty-five".