8530661773 has 4 divisors (see below), whose sum is σ = 8545602208. Its totient is φ = 8515721340.

The previous prime is 8530661729. The next prime is 8530661791. The reversal of 8530661773 is 3771660358.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8530661773 - 2¹³ = 8530653581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8530661273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7469361 + ... + 7470502.

It is an arithmetic number, because the mean of its divisors is an integer number (2136400552).

Almost surely, 2^8530661773 is an apocalyptic number.

It is an amenable number.

8530661773 is a deficient number, since it is larger than the sum of its proper divisors (14940435).

8530661773 is a wasteful number, since it uses less digits than its factorization.

8530661773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14940434.

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 8530661773 is about 92361.5816939056. The cubic root of 8530661773 is about 2043.2785430947.

The spelling of 8530661773 in words is "eight billion, five hundred thirty million, six hundred sixty-one thousand, seven hundred seventy-three".