846680864629 has 2 divisors, whose sum is σ = 846680864630. Its totient is φ = 846680864628.

The previous prime is 846680864587. The next prime is 846680864641. The reversal of 846680864629 is 926468086648.

846680864629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 824641977604 + 22038887025 = 908098^2 + 148455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-846680864629 is a prime.

It is a super-2 number, since 2×846680864629² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (846680864329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423340432314 + 423340432315.

It is an arithmetic number, because the mean of its divisors is an integer number (423340432315).

Almost surely, 2^846680864629 is an apocalyptic number.

It is an amenable number.

846680864629 is a deficient number, since it is larger than the sum of its proper divisors (1).

846680864629 is an equidigital number, since it uses as much as digits as its factorization.

846680864629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 191102976, while the sum is 67.

The spelling of 846680864629 in words is "eight hundred forty-six billion, six hundred eighty million, eight hundred sixty-four thousand, six hundred twenty-nine".