2605464321 has 8 divisors (see below), whose sum is σ = 3474739584. Its totient is φ = 1736582640.

The previous prime is 2605464289. The next prime is 2605464397. The reversal of 2605464321 is 1234645062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2605464321 - 2⁵ = 2605464289 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2605465321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82585 + ... + 109686.

It is an arithmetic number, because the mean of its divisors is an integer number (434342448).

Almost surely, 2^2605464321 is an apocalyptic number.

It is an amenable number.

2605464321 is a deficient number, since it is larger than the sum of its proper divisors (869275263).

2605464321 is a wasteful number, since it uses less digits than its factorization.

2605464321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196791.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 2605464321 is about 51043.7490884045. The cubic root of 2605464321 is about 1376.0315029702.

The spelling of 2605464321 in words is "two billion, six hundred five million, four hundred sixty-four thousand, three hundred twenty-one".