1623363944929 has 2 divisors, whose sum is σ = 1623363944930. Its totient is φ = 1623363944928.

The previous prime is 1623363944921. The next prime is 1623363944947. The reversal of 1623363944929 is 9294493633261.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1560837942225 + 62526002704 = 1249335^2 + 250052^2 .

It is a cyclic number.

It is not a de Polignac number, because 1623363944929 - 2³ = 1623363944921 is a prime.

It is not a weakly prime, because it can be changed into another prime (1623363944921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811681972464 + 811681972465.

It is an arithmetic number, because the mean of its divisors is an integer number (811681972465).

Almost surely, 2^{1623363944929} is an apocalyptic number.

It is an amenable number.

1623363944929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1623363944929 is an equidigital number, since it uses as much as digits as its factorization.

1623363944929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45349632, while the sum is 61.

The spelling of 1623363944929 in words is "one trillion, six hundred twenty-three billion, three hundred sixty-three million, nine hundred forty-four thousand, nine hundred twenty-nine".