944221496437 has 2 divisors, whose sum is σ = 944221496438. Its totient is φ = 944221496436.

The previous prime is 944221496417. The next prime is 944221496447. The reversal of 944221496437 is 734694122449.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 871383043441 + 72838452996 = 933479^2 + 269886^2 .

It is a cyclic number.

It is not a de Polignac number, because 944221496437 - 2²⁷ = 944087278709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (944221496417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472110748218 + 472110748219.

It is an arithmetic number, because the mean of its divisors is an integer number (472110748219).

Almost surely, 2^944221496437 is an apocalyptic number.

It is an amenable number.

944221496437 is a deficient number, since it is larger than the sum of its proper divisors (1).

944221496437 is an equidigital number, since it uses as much as digits as its factorization.

944221496437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10450944, while the sum is 55.

The spelling of 944221496437 in words is "nine hundred forty-four billion, two hundred twenty-one million, four hundred ninety-six thousand, four hundred thirty-seven".