2560263568739 has 4 divisors (see below), whose sum is σ = 2560266811920. Its totient is φ = 2560260325560.

The previous prime is 2560263568703. The next prime is 2560263568747. The reversal of 2560263568739 is 9378653620652.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2560263568739 - 2⁸ = 2560263568483 is a prime.

It is a super-3 number, since 3×2560263568739³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2560263568769) 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, 415949 + ... + 2300769.

It is an arithmetic number, because the mean of its divisors is an integer number (640066702980).

Almost surely, 2^{2560263568739} is an apocalyptic number.

2560263568739 is a deficient number, since it is larger than the sum of its proper divisors (3243181).

2560263568739 is a wasteful number, since it uses less digits than its factorization.

2560263568739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243180.

The product of its (nonzero) digits is 97977600, while the sum is 62.

The spelling of 2560263568739 in words is "two trillion, five hundred sixty billion, two hundred sixty-three million, five hundred sixty-eight thousand, seven hundred thirty-nine".