2628444487 has 2 divisors, whose sum is σ = 2628444488. Its totient is φ = 2628444486.

The previous prime is 2628444463. The next prime is 2628444541. The reversal of 2628444487 is 7844448262.

2628444487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2628444487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2628444487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2628444437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314222243 + 1314222244.

It is an arithmetic number, because the mean of its divisors is an integer number (1314222244).

Almost surely, 2^2628444487 is an apocalyptic number.

2628444487 is a deficient number, since it is larger than the sum of its proper divisors (1).

2628444487 is an equidigital number, since it uses as much as digits as its factorization.

2628444487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2752512, while the sum is 49.

The square root of 2628444487 is about 51268.3575609752. The cubic root of 2628444487 is about 1380.0651945326.

The spelling of 2628444487 in words is "two billion, six hundred twenty-eight million, four hundred forty-four thousand, four hundred eighty-seven".