61609330241 has 4 divisors (see below), whose sum is σ = 61734807984. Its totient is φ = 61483852500.

The previous prime is 61609330187. The next prime is 61609330243. The reversal of 61609330241 is 14203390616.

It is a happy number.

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 61609330241 - 2¹⁰ = 61609329217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61609330243) 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, 62738135 + ... + 62739116.

It is an arithmetic number, because the mean of its divisors is an integer number (15433701996).

Almost surely, 2^61609330241 is an apocalyptic number.

It is an amenable number.

61609330241 is a deficient number, since it is larger than the sum of its proper divisors (125477743).

61609330241 is a wasteful number, since it uses less digits than its factorization.

61609330241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125477742.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 61609330241 in words is "sixty-one billion, six hundred nine million, three hundred thirty thousand, two hundred forty-one".