2595968421 has 4 divisors (see below), whose sum is σ = 3461291232. Its totient is φ = 1730645612.

The previous prime is 2595968411. The next prime is 2595968429. The reversal of 2595968421 is 1248695952.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2595968421 - 2⁹ = 2595967909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2595968429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432661401 + ... + 432661406.

It is an arithmetic number, because the mean of its divisors is an integer number (865322808).

Almost surely, 2^2595968421 is an apocalyptic number.

It is an amenable number.

2595968421 is a deficient number, since it is larger than the sum of its proper divisors (865322811).

2595968421 is an equidigital number, since it uses as much as digits as its factorization.

2595968421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865322810.

The product of its digits is 1555200, while the sum is 51.

The square root of 2595968421 is about 50950.6469144406. The cubic root of 2595968421 is about 1374.3577687914.

The spelling of 2595968421 in words is "two billion, five hundred ninety-five million, nine hundred sixty-eight thousand, four hundred twenty-one".