628208976513 has 4 divisors (see below), whose sum is σ = 837611968688. Its totient is φ = 418805984340.

The previous prime is 628208976509. The next prime is 628208976541. The reversal of 628208976513 is 315679802826.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 628208976513 - 2² = 628208976509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628208976583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104701496083 + ... + 104701496088.

It is an arithmetic number, because the mean of its divisors is an integer number (209402992172).

Almost surely, 2^628208976513 is an apocalyptic number.

It is an amenable number.

628208976513 is a deficient number, since it is larger than the sum of its proper divisors (209402992175).

628208976513 is a wasteful number, since it uses less digits than its factorization.

628208976513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209402992174.

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 628208976513 in words is "six hundred twenty-eight billion, two hundred eight million, nine hundred seventy-six thousand, five hundred thirteen".