1944571963223 has 2 divisors, whose sum is σ = 1944571963224. Its totient is φ = 1944571963222.

The previous prime is 1944571963193. The next prime is 1944571963283. The reversal of 1944571963223 is 3223691754491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1944571963223 - 2⁸ = 1944571962967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1944571963283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972285981611 + 972285981612.

It is an arithmetic number, because the mean of its divisors is an integer number (972285981612).

Almost surely, 2^{1944571963223} is an apocalyptic number.

1944571963223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1944571963223 is an equidigital number, since it uses as much as digits as its factorization.

1944571963223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 56.

The spelling of 1944571963223 in words is "one trillion, nine hundred forty-four billion, five hundred seventy-one million, nine hundred sixty-three thousand, two hundred twenty-three".