2582641018 has 4 divisors (see below), whose sum is σ = 3873961530. Its totient is φ = 1291320508.

The previous prime is 2582641013. The next prime is 2582641067. The reversal of 2582641018 is 8101462852.

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

It can be written as a sum of positive squares in only one way, i.e., 2582367489 + 273529 = 50817^2 + 523^2 .

It is not an unprimeable number, because it can be changed into a prime (2582641013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 645660253 + ... + 645660256.

Almost surely, 2^2582641018 is an apocalyptic number.

2582641018 is a deficient number, since it is larger than the sum of its proper divisors (1291320512).

2582641018 is a wasteful number, since it uses less digits than its factorization.

2582641018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291320511.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 2582641018 is about 50819.6912426670. The cubic root of 2582641018 is about 1372.0018009054.

The spelling of 2582641018 in words is "two billion, five hundred eighty-two million, six hundred forty-one thousand, eighteen".