2606456578 has 16 divisors (see below), whose sum is σ = 4345586496. Its totient is φ = 1162398640.

The previous prime is 2606456569. The next prime is 2606456599. The reversal of 2606456578 is 8756546062.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1116526 + ... + 1118857.

It is an arithmetic number, because the mean of its divisors is an integer number (271599156).

Almost surely, 2^2606456578 is an apocalyptic number.

2606456578 is a deficient number, since it is larger than the sum of its proper divisors (1739129918).

2606456578 is a wasteful number, since it uses less digits than its factorization.

2606456578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235449.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The square root of 2606456578 is about 51053.4678352019. The cubic root of 2606456578 is about 1376.2061619984.

The spelling of 2606456578 in words is "two billion, six hundred six million, four hundred fifty-six thousand, five hundred seventy-eight".