9397444447939 has 16 divisors (see below), whose sum is σ = 9553171122432. Its totient is φ = 9243254458368.

The previous prime is 9397444447927. The next prime is 9397444448009.

9397444447939 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9397444447939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9397444447639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7399867 + ... + 8576299.

It is an arithmetic number, because the mean of its divisors is an integer number (597073195152).

Almost surely, 2^{9397444447939} is an apocalyptic number.

9397444447939 is a deficient number, since it is larger than the sum of its proper divisors (155726674493).

9397444447939 is a wasteful number, since it uses less digits than its factorization.

9397444447939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177086.

The product of its digits is 2962842624, while the sum is 76.

The spelling of 9397444447939 in words is "nine trillion, three hundred ninety-seven billion, four hundred forty-four million, four hundred forty-seven thousand, nine hundred thirty-nine".