61543022220289 has 8 divisors (see below), whose sum is σ = 62994327361920. Its totient is φ = 60097628709456.

The previous prime is 61543022220257. The next prime is 61543022220307. The reversal of 61543022220289 is 98202222034516.

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 61543022220289 - 2⁵ = 61543022220257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61543022250289) 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, 1477886634 + ... + 1477928275.

It is an arithmetic number, because the mean of its divisors is an integer number (7874290920240).

Almost surely, 2^{61543022220289} is an apocalyptic number.

It is an amenable number.

61543022220289 is a deficient number, since it is larger than the sum of its proper divisors (1451305141631).

61543022220289 is a wasteful number, since it uses less digits than its factorization.

61543022220289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955815399.

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 61543022220289 in words is "sixty-one trillion, five hundred forty-three billion, twenty-two million, two hundred twenty thousand, two hundred eighty-nine".