628237927249 has 2 divisors, whose sum is σ = 628237927250. Its totient is φ = 628237927248.

The previous prime is 628237927183. The next prime is 628237927267. The reversal of 628237927249 is 942729732826.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 550029889600 + 78208037649 = 741640^2 + 279657^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-628237927249 is a prime.

It is not a weakly prime, because it can be changed into another prime (628237127249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314118963624 + 314118963625.

It is an arithmetic number, because the mean of its divisors is an integer number (314118963625).

Almost surely, 2^628237927249 is an apocalyptic number.

It is an amenable number.

628237927249 is a deficient number, since it is larger than the sum of its proper divisors (1).

628237927249 is an equidigital number, since it uses as much as digits as its factorization.

628237927249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36578304, while the sum is 61.

The spelling of 628237927249 in words is "six hundred twenty-eight billion, two hundred thirty-seven million, nine hundred twenty-seven thousand, two hundred forty-nine".