8739550221849 has 12 divisors (see below), whose sum is σ = 12623909742912. Its totient is φ = 5826313747800.

The previous prime is 8739550221791. The next prime is 8739550221863. The reversal of 8739550221849 is 9481220559378.

8739550221849 is a `hidden beast` number, since 8 + 7 + 3 + 9 + 550 + 22 + 18 + 49 = 666.

It is not a de Polignac number, because 8739550221849 - 2⁸ = 8739550221593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8739550221349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3365917 + ... + 5367354.

It is an arithmetic number, because the mean of its divisors is an integer number (1051992478576).

Almost surely, 2^{8739550221849} is an apocalyptic number.

It is an amenable number.

8739550221849 is a deficient number, since it is larger than the sum of its proper divisors (3884359521063).

8739550221849 is a wasteful number, since it uses less digits than its factorization.

8739550221849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8844468 (or 8844465 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 8739550221849 in words is "eight trillion, seven hundred thirty-nine billion, five hundred fifty million, two hundred twenty-one thousand, eight hundred forty-nine".