97444489939 has 2 divisors, whose sum is σ = 97444489940. Its totient is φ = 97444489938.

The previous prime is 97444489811. The next prime is 97444489949. The reversal of 97444489939 is 93998444479.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97444489939 - 2⁷ = 97444489811 is a prime.

It is not a weakly prime, because it can be changed into another prime (97444489949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48722244969 + 48722244970.

It is an arithmetic number, because the mean of its divisors is an integer number (48722244970).

Almost surely, 2^97444489939 is an apocalyptic number.

97444489939 is a deficient number, since it is larger than the sum of its proper divisors (1).

97444489939 is an equidigital number, since it uses as much as digits as its factorization.

97444489939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282175488, while the sum is 70.

The spelling of 97444489939 in words is "ninety-seven billion, four hundred forty-four million, four hundred eighty-nine thousand, nine hundred thirty-nine".