944452432381 has 2 divisors, whose sum is σ = 944452432382. Its totient is φ = 944452432380.

The previous prime is 944452432291. The next prime is 944452432397. The reversal of 944452432381 is 183234254449.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 698743856281 + 245708576100 = 835909^2 + 495690^2 .

It is an emirp because it is prime and its reverse (183234254449) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 944452432381 - 2¹¹ = 944452430333 is a prime.

It is a super-2 number, since 2×944452432381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (944452432081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472226216190 + 472226216191.

It is an arithmetic number, because the mean of its divisors is an integer number (472226216191).

Almost surely, 2^944452432381 is an apocalyptic number.

It is an amenable number.

944452432381 is a deficient number, since it is larger than the sum of its proper divisors (1).

944452432381 is an equidigital number, since it uses as much as digits as its factorization.

944452432381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3317760, while the sum is 49.

The spelling of 944452432381 in words is "nine hundred forty-four billion, four hundred fifty-two million, four hundred thirty-two thousand, three hundred eighty-one".