2644628486 has 4 divisors (see below), whose sum is σ = 3966942732. Its totient is φ = 1322314242.

The previous prime is 2644628461. The next prime is 2644628501. The reversal of 2644628486 is 6848264462.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 661157120 + ... + 661157123.

It is an arithmetic number, because the mean of its divisors is an integer number (991735683).

Almost surely, 2^2644628486 is an apocalyptic number.

2644628486 is a deficient number, since it is larger than the sum of its proper divisors (1322314246).

2644628486 is a wasteful number, since it uses less digits than its factorization.

2644628486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322314245.

The product of its digits is 3538944, while the sum is 50.

The square root of 2644628486 is about 51425.9514836624. The cubic root of 2644628486 is about 1382.8918713378.

The spelling of 2644628486 in words is "two billion, six hundred forty-four million, six hundred twenty-eight thousand, four hundred eighty-six".