670761023281 has 2 divisors, whose sum is σ = 670761023282. Its totient is φ = 670761023280.

The previous prime is 670761023203. The next prime is 670761023293. The reversal of 670761023281 is 182320167076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 627912023281 + 42849000000 = 792409^2 + 207000^2 .

It is a cyclic number.

It is not a de Polignac number, because 670761023281 - 2²⁷ = 670626805553 is a prime.

It is a super-2 number, since 2×670761023281² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (670761033281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335380511640 + 335380511641.

It is an arithmetic number, because the mean of its divisors is an integer number (335380511641).

Almost surely, 2^670761023281 is an apocalyptic number.

It is an amenable number.

670761023281 is a deficient number, since it is larger than the sum of its proper divisors (1).

670761023281 is an equidigital number, since it uses as much as digits as its factorization.

670761023281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 670761023281 in words is "six hundred seventy billion, seven hundred sixty-one million, twenty-three thousand, two hundred eighty-one".