2564380682 has 24 divisors (see below), whose sum is σ = 3961915020. Its totient is φ = 1244833920.

The previous prime is 2564380681. The next prime is 2564380703. The reversal of 2564380682 is 2860834652.

It can be written as a sum of positive squares in 6 ways, for example, as 2366725201 + 197655481 = 48649^2 + 14059^2 .

It is not an unprimeable number, because it can be changed into a prime (2564380681) 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 11 ways as a sum of consecutive naturals, for example, 1940582 + ... + 1941902.

Almost surely, 2^2564380682 is an apocalyptic number.

2564380682 is a deficient number, since it is larger than the sum of its proper divisors (1397534338).

2564380682 is a wasteful number, since it uses less digits than its factorization.

2564380682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106 (or 2069 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 44.

The square root of 2564380682 is about 50639.7144739186. The cubic root of 2564380682 is about 1368.7606106862.

The spelling of 2564380682 in words is "two billion, five hundred sixty-four million, three hundred eighty thousand, six hundred eighty-two".