46161811609 has 3 divisors (see below), whose sum is σ = 46162026463. Its totient is φ = 46161596756.

The previous prime is 46161811583. The next prime is 46161811639. The reversal of 46161811609 is 90611816164.

The square root of 46161811609 is 214853.

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 can be written as a sum of positive squares in only one way, i.e., 45746793225 + 415018384 = 213885^2 + 20372^2 .

It is not a de Polignac number, because 46161811609 - 2⁹ = 46161811097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46161811639) 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, 107427 + ... + 322279.

Almost surely, 2^46161811609 is an apocalyptic number.

46161811609 is the 214853-rd square number.

46161811609 is the 107427-th centered octagonal number.

It is an amenable number.

46161811609 is a deficient number, since it is larger than the sum of its proper divisors (214854).

46161811609 is an frugal number, since it uses more digits than its factorization.

46161811609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429706 (or 214853 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 46161811609 in words is "forty-six billion, one hundred sixty-one million, eight hundred eleven thousand, six hundred nine".