189454472212829 has 2 divisors, whose sum is σ = 189454472212830. Its totient is φ = 189454472212828.

The previous prime is 189454472212801. The next prime is 189454472212961. The reversal of 189454472212829 is 928212274454981.

189454472212829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120911356240900 + 68543115971929 = 10995970^2 + 8279077^2 .

It is a cyclic number.

It is not a de Polignac number, because 189454472212829 - 2⁴⁰ = 188354960585053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189454472262829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94727236106414 + 94727236106415.

It is an arithmetic number, because the mean of its divisors is an integer number (94727236106415).

Almost surely, 2^{189454472212829} is an apocalyptic number.

It is an amenable number.

189454472212829 is a deficient number, since it is larger than the sum of its proper divisors (1).

189454472212829 is an equidigital number, since it uses as much as digits as its factorization.

189454472212829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 185794560, while the sum is 68.

The spelling of 189454472212829 in words is "one hundred eighty-nine trillion, four hundred fifty-four billion, four hundred seventy-two million, two hundred twelve thousand, eight hundred twenty-nine".