627716425849 has 2 divisors, whose sum is σ = 627716425850. Its totient is φ = 627716425848.

The previous prime is 627716425801. The next prime is 627716425867. The reversal of 627716425849 is 948524617726.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327061603449 + 300654822400 = 571893^2 + 548320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-627716425849 is a prime.

It is a super-2 number, since 2×627716425849² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (627716425249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313858212924 + 313858212925.

It is an arithmetic number, because the mean of its divisors is an integer number (313858212925).

Almost surely, 2^627716425849 is an apocalyptic number.

It is an amenable number.

627716425849 is a deficient number, since it is larger than the sum of its proper divisors (1).

627716425849 is an equidigital number, since it uses as much as digits as its factorization.

627716425849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40642560, while the sum is 61.

The spelling of 627716425849 in words is "six hundred twenty-seven billion, seven hundred sixteen million, four hundred twenty-five thousand, eight hundred forty-nine".