944391514189 has 2 divisors, whose sum is σ = 944391514190. Its totient is φ = 944391514188.

The previous prime is 944391514139. The next prime is 944391514247. The reversal of 944391514189 is 981415193449.

It is a happy number.

It is an a-pointer prime, because the next prime (944391514247) can be obtained adding 944391514189 to its sum of digits (58).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 911037797289 + 33353716900 = 954483^2 + 182630^2 .

It is a cyclic number.

It is not a de Polignac number, because 944391514189 - 2⁷ = 944391514061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (944391514139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472195757094 + 472195757095.

It is an arithmetic number, because the mean of its divisors is an integer number (472195757095).

Almost surely, 2^944391514189 is an apocalyptic number.

It is an amenable number.

944391514189 is a deficient number, since it is larger than the sum of its proper divisors (1).

944391514189 is an equidigital number, since it uses as much as digits as its factorization.

944391514189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 58.

The spelling of 944391514189 in words is "nine hundred forty-four billion, three hundred ninety-one million, five hundred fourteen thousand, one hundred eighty-nine".