61300640416073 has 4 divisors (see below), whose sum is σ = 61300735310100. Its totient is φ = 61300545522048.

The previous prime is 61300640416031. The next prime is 61300640416079. The reversal of 61300640416073 is 37061404600316.

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 25773461637049 + 35527178779024 = 5076757^2 + 5960468^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61300640416073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61300640416073.

It is not an unprimeable number, because it can be changed into a prime (61300640416079) 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, 46471340 + ... + 47772237.

It is an arithmetic number, because the mean of its divisors is an integer number (15325183827525).

Almost surely, 2^{61300640416073} is an apocalyptic number.

It is an amenable number.

61300640416073 is a deficient number, since it is larger than the sum of its proper divisors (94894027).

61300640416073 is an equidigital number, since it uses as much as digits as its factorization.

61300640416073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94894026.

The product of its (nonzero) digits is 217728, while the sum is 41.

The spelling of 61300640416073 in words is "sixty-one trillion, three hundred billion, six hundred forty million, four hundred sixteen thousand, seventy-three".