126162045689 has 2 divisors, whose sum is σ = 126162045690. Its totient is φ = 126162045688.

The previous prime is 126162045683. The next prime is 126162045727. The reversal of 126162045689 is 986540261621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83102475625 + 43059570064 = 288275^2 + 207508^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126162045689 is a prime.

It is not a weakly prime, because it can be changed into another prime (126162045683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63081022844 + 63081022845.

It is an arithmetic number, because the mean of its divisors is an integer number (63081022845).

Almost surely, 2^126162045689 is an apocalyptic number.

It is an amenable number.

126162045689 is a deficient number, since it is larger than the sum of its proper divisors (1).

126162045689 is an equidigital number, since it uses as much as digits as its factorization.

126162045689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 126162045689 in words is "one hundred twenty-six billion, one hundred sixty-two million, forty-five thousand, six hundred eighty-nine".