847772006553 has 12 divisors (see below), whose sum is σ = 1224578332068. Its totient is φ = 565172676000.

The previous prime is 847772006513. The next prime is 847772006569. The reversal of 847772006553 is 355600277748.

It is a happy number.

847772006553 is a `hidden beast` number, since 84 + 7 + 7 + 7 + 2 + 0 + 0 + 6 + 553 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 93005481024 + 754766525529 = 304968^2 + 868773^2 .

It is not a de Polignac number, because 847772006553 - 2⁸ = 847772006297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 847772006553.

It is not an unprimeable number, because it can be changed into a prime (847772006513) 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, 71050 + ... + 1304067.

It is an arithmetic number, because the mean of its divisors is an integer number (102048194339).

Almost surely, 2^847772006553 is an apocalyptic number.

It is an amenable number.

847772006553 is a deficient number, since it is larger than the sum of its proper divisors (376806325515).

847772006553 is a wasteful number, since it uses less digits than its factorization.

847772006553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443624 (or 1443621 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 54.

The spelling of 847772006553 in words is "eight hundred forty-seven billion, seven hundred seventy-two million, six thousand, five hundred fifty-three".