167828949491429 has 2 divisors, whose sum is σ = 167828949491430. Its totient is φ = 167828949491428.

The previous prime is 167828949491393. The next prime is 167828949491443. The reversal of 167828949491429 is 924194949828761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129153610388929 + 38675339102500 = 11364577^2 + 6218950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-167828949491429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167828939491429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83914474745714 + 83914474745715.

It is an arithmetic number, because the mean of its divisors is an integer number (83914474745715).

Almost surely, 2^{167828949491429} is an apocalyptic number.

It is an amenable number.

167828949491429 is a deficient number, since it is larger than the sum of its proper divisors (1).

167828949491429 is an equidigital number, since it uses as much as digits as its factorization.

167828949491429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4514807808, while the sum is 83.

The spelling of 167828949491429 in words is "one hundred sixty-seven trillion, eight hundred twenty-eight billion, nine hundred forty-nine million, four hundred ninety-one thousand, four hundred twenty-nine".