9800237991847 has 4 divisors (see below), whose sum is σ = 9875048969016. Its totient is φ = 9725427014680.

The previous prime is 9800237991833. The next prime is 9800237991911. The reversal of 9800237991847 is 7481997320089.

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

It is a cyclic number.

It is not a de Polignac number, because 9800237991847 - 2³⁵ = 9765878253479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9800237911847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37405488388 + ... + 37405488649.

It is an arithmetic number, because the mean of its divisors is an integer number (2468762242254).

Almost surely, 2^{9800237991847} is an apocalyptic number.

9800237991847 is a deficient number, since it is larger than the sum of its proper divisors (74810977169).

9800237991847 is a wasteful number, since it uses less digits than its factorization.

9800237991847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74810977168.

The product of its (nonzero) digits is 54867456, while the sum is 67.

The spelling of 9800237991847 in words is "nine trillion, eight hundred billion, two hundred thirty-seven million, nine hundred ninety-one thousand, eight hundred forty-seven".