628500690973 has 2 divisors, whose sum is σ = 628500690974. Its totient is φ = 628500690972.

The previous prime is 628500690887. The next prime is 628500690991. The reversal of 628500690973 is 379096005826.

628500690973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 593765795844 + 34734895129 = 770562^2 + 186373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-628500690973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628500697973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314250345486 + 314250345487.

It is an arithmetic number, because the mean of its divisors is an integer number (314250345487).

Almost surely, 2^628500690973 is an apocalyptic number.

It is an amenable number.

628500690973 is a deficient number, since it is larger than the sum of its proper divisors (1).

628500690973 is an equidigital number, since it uses as much as digits as its factorization.

628500690973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 628500690973 in words is "six hundred twenty-eight billion, five hundred million, six hundred ninety thousand, nine hundred seventy-three".