8549772406984 has 16 divisors (see below), whose sum is σ = 16030938887820. Its totient is φ = 4274855370240.

The previous prime is 8549772406979. The next prime is 8549772407009. The reversal of 8549772406984 is 4896042779458.

It can be written as a sum of positive squares in 2 ways, for example, as 7363027980100 + 1186744426884 = 2713490^2 + 1089378^2 .

It is a super-2 number, since 2×8549772406984² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2653677 + ... + 4913404.

Almost surely, 2^{8549772406984} is an apocalyptic number.

It is an amenable number.

8549772406984 is a deficient number, since it is larger than the sum of its proper divisors (7481166480836).

8549772406984 is a wasteful number, since it uses less digits than its factorization.

8549772406984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7708320 (or 7708316 counting only the distinct ones).

The product of its (nonzero) digits is 975421440, while the sum is 73.

The spelling of 8549772406984 in words is "eight trillion, five hundred forty-nine billion, seven hundred seventy-two million, four hundred six thousand, nine hundred eighty-four".