73966049089 has 3 divisors (see below), whose sum is σ = 73966321057. Its totient is φ = 73965777122.

The previous prime is 73966049083. The next prime is 73966049119. The reversal of 73966049089 is 98094066937.

The square root of 73966049089 is 271967.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 73966049089 - 2¹¹ = 73966047041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73966049083) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 135984 + ... + 407950.

Almost surely, 2^73966049089 is an apocalyptic number.

73966049089 is the 271967-th square number.

73966049089 is the 135984-th centered octagonal number.

It is an amenable number.

73966049089 is a deficient number, since it is larger than the sum of its proper divisors (271968).

73966049089 is an frugal number, since it uses more digits than its factorization.

73966049089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543934 (or 271967 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 61.

The spelling of 73966049089 in words is "seventy-three billion, nine hundred sixty-six million, forty-nine thousand, eighty-nine".