61081683289 has 8 divisors (see below), whose sum is σ = 68932307520. Its totient is φ = 53614016400.

The previous prime is 61081683283. The next prime is 61081683307. The reversal of 61081683289 is 98238618016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61081683289 - 2⁹ = 61081682777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61081683283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95738997 + ... + 95739634.

It is an arithmetic number, because the mean of its divisors is an integer number (8616538440).

Almost surely, 2^61081683289 is an apocalyptic number.

It is an amenable number.

61081683289 is a deficient number, since it is larger than the sum of its proper divisors (7850624231).

61081683289 is a wasteful number, since it uses less digits than its factorization.

61081683289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191478671.

The product of its (nonzero) digits is 995328, while the sum is 52.

The spelling of 61081683289 in words is "sixty-one billion, eighty-one million, six hundred eighty-three thousand, two hundred eighty-nine".