2865314638 has 4 divisors (see below), whose sum is σ = 4297971960. Its totient is φ = 1432657318.

The previous prime is 2865314609. The next prime is 2865314659. The reversal of 2865314638 is 8364135682.

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

It is a congruent 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 as a sum of consecutive naturals, namely, 716328658 + ... + 716328661.

It is an arithmetic number, because the mean of its divisors is an integer number (1074492990).

Almost surely, 2^2865314638 is an apocalyptic number.

2865314638 is a deficient number, since it is larger than the sum of its proper divisors (1432657322).

2865314638 is a wasteful number, since it uses less digits than its factorization.

2865314638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432657321.

The product of its digits is 829440, while the sum is 46.

The square root of 2865314638 is about 53528.6338140625. The cubic root of 2865314638 is about 1420.3349467757.

The spelling of 2865314638 in words is "two billion, eight hundred sixty-five million, three hundred fourteen thousand, six hundred thirty-eight".