1612277766257 has 2 divisors, whose sum is σ = 1612277766258. Its totient is φ = 1612277766256.

The previous prime is 1612277766119. The next prime is 1612277766299. The reversal of 1612277766257 is 7526677722161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1091103504481 + 521174261776 = 1044559^2 + 721924^2 .

It is a cyclic number.

It is not a de Polignac number, because 1612277766257 - 2¹⁸ = 1612277504113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1612277766196 and 1612277766205.

It is not a weakly prime, because it can be changed into another prime (1612277766857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806138883128 + 806138883129.

It is an arithmetic number, because the mean of its divisors is an integer number (806138883129).

Almost surely, 2^{1612277766257} is an apocalyptic number.

It is an amenable number.

1612277766257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1612277766257 is an equidigital number, since it uses as much as digits as its factorization.

1612277766257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20744640, while the sum is 59.

The spelling of 1612277766257 in words is "one trillion, six hundred twelve billion, two hundred seventy-seven million, seven hundred sixty-six thousand, two hundred fifty-seven".