2560663923 has 8 divisors (see below), whose sum is σ = 3426369936. Its totient is φ = 1701033600.

The previous prime is 2560663907. The next prime is 2560663927. The reversal of 2560663923 is 3293660652.

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

It is not a de Polignac number, because 2560663923 - 2⁴ = 2560663907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2560663927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1517938 + ... + 1519623.

It is an arithmetic number, because the mean of its divisors is an integer number (428296242).

Almost surely, 2^2560663923 is an apocalyptic number.

2560663923 is a deficient number, since it is larger than the sum of its proper divisors (865706013).

2560663923 is a wasteful number, since it uses less digits than its factorization.

2560663923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3037845.

The product of its (nonzero) digits is 349920, while the sum is 42.

The square root of 2560663923 is about 50603.0031025828. The cubic root of 2560663923 is about 1368.0990067404.

The spelling of 2560663923 in words is "two billion, five hundred sixty million, six hundred sixty-three thousand, nine hundred twenty-three".