847661773041 has 10 divisors (see below), whose sum is σ = 1266260179602. Its totient is φ = 565107848640.

The previous prime is 847661773039. The next prime is 847661773073. The reversal of 847661773041 is 140377166748.

It is a happy number.

847661773041 is a `hidden beast` number, since 8 + 476 + 61 + 7 + 73 + 0 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 506289171600 + 341372601441 = 711540^2 + 584271^2 .

It is not a de Polignac number, because 847661773041 - 2¹ = 847661773039 is a prime.

It is a super-3 number, since 3×847661773041³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (847661773081) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5232480000 + ... + 5232480161.

Almost surely, 2^847661773041 is an apocalyptic number.

847661773041 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

847661773041 is a deficient number, since it is larger than the sum of its proper divisors (418598406561).

847661773041 is a wasteful number, since it uses less digits than its factorization.

847661773041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10464960173 (or 10464960164 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 847661773041 in words is "eight hundred forty-seven billion, six hundred sixty-one million, seven hundred seventy-three thousand, forty-one".