9897737845339 has 4 divisors (see below), whose sum is σ = 9897928984224. Its totient is φ = 9897546706456.

The previous prime is 9897737845321. The next prime is 9897737845367. The reversal of 9897737845339 is 9335487377989.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9897737845339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9897737245339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95491747 + ... + 95595340.

It is an arithmetic number, because the mean of its divisors is an integer number (2474482246056).

Almost surely, 2^{9897737845339} is an apocalyptic number.

9897737845339 is a deficient number, since it is larger than the sum of its proper divisors (191138885).

9897737845339 is a wasteful number, since it uses less digits than its factorization.

9897737845339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191138884.

The product of its digits is 8641624320, while the sum is 82.

The spelling of 9897737845339 in words is "nine trillion, eight hundred ninety-seven billion, seven hundred thirty-seven million, eight hundred forty-five thousand, three hundred thirty-nine".