61339062289 has 4 divisors (see below), whose sum is σ = 61416025524. Its totient is φ = 61262099056.

The previous prime is 61339062287. The next prime is 61339062311. The reversal of 61339062289 is 98226093316.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43754180625 + 17584881664 = 209175^2 + 132608^2 .

It is a cyclic number.

It is not a de Polignac number, because 61339062289 - 2¹ = 61339062287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61339062287) 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, 38480422 + ... + 38482015.

It is an arithmetic number, because the mean of its divisors is an integer number (15354006381).

Almost surely, 2^61339062289 is an apocalyptic number.

It is an amenable number.

61339062289 is a deficient number, since it is larger than the sum of its proper divisors (76963235).

61339062289 is an equidigital number, since it uses as much as digits as its factorization.

61339062289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76963234.

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 61339062289 in words is "sixty-one billion, three hundred thirty-nine million, sixty-two thousand, two hundred eighty-nine".