73461312289 has 4 divisors (see below), whose sum is σ = 73471406256. Its totient is φ = 73451218324.

The previous prime is 73461312259. The next prime is 73461312371. The reversal of 73461312289 is 98221316437.

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 73461312289 - 2²⁵ = 73427757857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73461312259) 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, 5036059 + ... + 5050624.

It is an arithmetic number, because the mean of its divisors is an integer number (18367851564).

Almost surely, 2^73461312289 is an apocalyptic number.

It is an amenable number.

73461312289 is a deficient number, since it is larger than the sum of its proper divisors (10093967).

73461312289 is a wasteful number, since it uses less digits than its factorization.

73461312289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10093966.

The product of its digits is 435456, while the sum is 46.

The spelling of 73461312289 in words is "seventy-three billion, four hundred sixty-one million, three hundred twelve thousand, two hundred eighty-nine".