1609793465 has 16 divisors (see below), whose sum is σ = 2245138560. Its totient is φ = 1085147520.

The previous prime is 1609793443. The next prime is 1609793491. The reversal of 1609793465 is 5643979061.

It is not a de Polignac number, because 1609793465 - 2⁶ = 1609793401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387716 + ... + 391845.

It is an arithmetic number, because the mean of its divisors is an integer number (140321160).

Almost surely, 2^1609793465 is an apocalyptic number.

It is an amenable number.

1609793465 is a deficient number, since it is larger than the sum of its proper divisors (635345095).

1609793465 is an equidigital number, since it uses as much as digits as its factorization.

1609793465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779632.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The square root of 1609793465 is about 40122.2315555852. The cubic root of 1609793465 is about 1171.9885983294.

The spelling of 1609793465 in words is "one billion, six hundred nine million, seven hundred ninety-three thousand, four hundred sixty-five".