9812249847 has 48 divisors (see below), whose sum is σ = 15576331680. Its totient is φ = 6161702400.

The previous prime is 9812249827. The next prime is 9812249849. The reversal of 9812249847 is 7489422189.

9812249847 is a `hidden beast` number, since 98 + 1 + 22 + 498 + 47 = 666.

9812249847 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9812249847 - 2¹⁶ = 9812184311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9812249793 and 9812249802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9812249849) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 271947 + ... + 305907.

It is an arithmetic number, because the mean of its divisors is an integer number (324506910).

Almost surely, 2^9812249847 is an apocalyptic number.

9812249847 is a deficient number, since it is larger than the sum of its proper divisors (5764081833).

9812249847 is a wasteful number, since it uses less digits than its factorization.

9812249847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34046 (or 34034 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 9812249847 is about 99056.8011143102. The cubic root of 9812249847 is about 2140.8662349710.

The spelling of 9812249847 in words is "nine billion, eight hundred twelve million, two hundred forty-nine thousand, eight hundred forty-seven".