1128639506597 has 2 divisors, whose sum is σ = 1128639506598. Its totient is φ = 1128639506596.

The previous prime is 1128639506549. The next prime is 1128639506629. The reversal of 1128639506597 is 7956059368211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1075356556036 + 53282950561 = 1036994^2 + 230831^2 .

It is a cyclic number.

It is not a de Polignac number, because 1128639506597 - 2⁴⁰ = 29127878821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1128639506507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564319753298 + 564319753299.

It is an arithmetic number, because the mean of its divisors is an integer number (564319753299).

Almost surely, 2^{1128639506597} is an apocalyptic number.

It is an amenable number.

1128639506597 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128639506597 is an equidigital number, since it uses as much as digits as its factorization.

1128639506597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24494400, while the sum is 62.

The spelling of 1128639506597 in words is "one trillion, one hundred twenty-eight billion, six hundred thirty-nine million, five hundred six thousand, five hundred ninety-seven".