2580356678 has 4 divisors (see below), whose sum is σ = 3870535020. Its totient is φ = 1290178338.

The previous prime is 2580356671. The next prime is 2580356699. The reversal of 2580356678 is 8766530852.

2580356678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2580356671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 645089168 + ... + 645089171.

It is an arithmetic number, because the mean of its divisors is an integer number (967633755).

Almost surely, 2^2580356678 is an apocalyptic number.

2580356678 is a deficient number, since it is larger than the sum of its proper divisors (1290178342).

2580356678 is a wasteful number, since it uses less digits than its factorization.

2580356678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290178341.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The square root of 2580356678 is about 50797.2113210952. The cubic root of 2580356678 is about 1371.5971707785.

The spelling of 2580356678 in words is "two billion, five hundred eighty million, three hundred fifty-six thousand, six hundred seventy-eight".