61416239329 has 9 divisors (see below), whose sum is σ = 62223336147. Its totient is φ = 60619488384.

The previous prime is 61416239323. The next prime is 61416239347. The reversal of 61416239329 is 92393261416.

The square root of 61416239329 is 247823.

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

It can be written as a sum of positive squares in only one way, i.e., 61337952225 + 78287104 = 247665^2 + 8848^2 .

It is a de Polignac number, because none of the positive numbers 2^k-61416239329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61416239323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19576449 + ... + 19579585.

Almost surely, 2^61416239329 is an apocalyptic number.

61416239329 is the 247823-rd square number.

61416239329 is the 123912-nd centered octagonal number.

It is an amenable number.

61416239329 is a deficient number, since it is larger than the sum of its proper divisors (807096818).

61416239329 is an frugal number, since it uses more digits than its factorization.

61416239329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6432 (or 3216 counting only the distinct ones).

The product of its digits is 419904, while the sum is 46.

The spelling of 61416239329 in words is "sixty-one billion, four hundred sixteen million, two hundred thirty-nine thousand, three hundred twenty-nine".