61473216205 has 8 divisors (see below), whose sum is σ = 74498234904. Its totient is φ = 48691656000.

The previous prime is 61473216199. The next prime is 61473216289. The reversal of 61473216205 is 50261237416.

61473216205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3436069924 + 58037146281 = 58618^2 + 240909^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-61473216205 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60864066 + ... + 60865075.

It is an arithmetic number, because the mean of its divisors is an integer number (9312279363).

Almost surely, 2^61473216205 is an apocalyptic number.

It is an amenable number.

61473216205 is a deficient number, since it is larger than the sum of its proper divisors (13025018699).

61473216205 is a wasteful number, since it uses less digits than its factorization.

61473216205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121729247.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 61473216205 in words is "sixty-one billion, four hundred seventy-three million, two hundred sixteen thousand, two hundred five".