1945688323 has 2 divisors, whose sum is σ = 1945688324. Its totient is φ = 1945688322.

The previous prime is 1945688317. The next prime is 1945688351. The reversal of 1945688323 is 3238865491.

It is a weak prime.

It is an emirp because it is prime and its reverse (3238865491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1945688323 - 2⁵ = 1945688291 is a prime.

It is not a weakly prime, because it can be changed into another prime (1945688023) 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, 972844161 + 972844162.

It is an arithmetic number, because the mean of its divisors is an integer number (972844162).

Almost surely, 2^1945688323 is an apocalyptic number.

1945688323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1945688323 is an equidigital number, since it uses as much as digits as its factorization.

1945688323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 49.

The square root of 1945688323 is about 44109.9571865582. The cubic root of 1945688323 is about 1248.4114910733.

The spelling of 1945688323 in words is "one billion, nine hundred forty-five million, six hundred eighty-eight thousand, three hundred twenty-three".