2605722770 has 64 divisors (see below), whose sum is σ = 5796541440. Its totient is φ = 822930432.

The previous prime is 2605722731. The next prime is 2605722781. The reversal of 2605722770 is 772275062.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 32636 + ... + 79224.

It is an arithmetic number, because the mean of its divisors is an integer number (90570960).

Almost surely, 2^2605722770 is an apocalyptic number.

2605722770 is an abundant number, since it is smaller than the sum of its proper divisors (3190818670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2605722770 is a wasteful number, since it uses less digits than its factorization.

2605722770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46667.

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 2605722770 is about 51046.2806676451. The cubic root of 2605722770 is about 1376.0769999417.

The spelling of 2605722770 in words is "two billion, six hundred five million, seven hundred twenty-two thousand, seven hundred seventy".