2628774436 has 6 divisors (see below), whose sum is σ = 4600355270. Its totient is φ = 1314387216.

The previous prime is 2628774383. The next prime is 2628774451. The reversal of 2628774436 is 6344778262.

It can be written as a sum of positive squares in only one way, i.e., 2592846400 + 35928036 = 50920^2 + 5994^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2628774436.

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, 328596801 + ... + 328596808.

Almost surely, 2^2628774436 is an apocalyptic number.

It is an amenable number.

2628774436 is a deficient number, since it is larger than the sum of its proper divisors (1971580834).

2628774436 is a wasteful number, since it uses less digits than its factorization.

2628774436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657193613 (or 657193611 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 49.

The square root of 2628774436 is about 51271.5753220047. The cubic root of 2628774436 is about 1380.1229387080.

The spelling of 2628774436 in words is "two billion, six hundred twenty-eight million, seven hundred seventy-four thousand, four hundred thirty-six".