61300644793 has 2 divisors, whose sum is σ = 61300644794. Its totient is φ = 61300644792.

The previous prime is 61300644781. The next prime is 61300644809. The reversal of 61300644793 is 39744600316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33840177849 + 27460466944 = 183957^2 + 165712^2 .

It is a cyclic number.

It is not a de Polignac number, because 61300644793 - 2¹³ = 61300636601 is a prime.

It is not a weakly prime, because it can be changed into another prime (61300644703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30650322396 + 30650322397.

It is an arithmetic number, because the mean of its divisors is an integer number (30650322397).

Almost surely, 2^61300644793 is an apocalyptic number.

It is an amenable number.

61300644793 is a deficient number, since it is larger than the sum of its proper divisors (1).

61300644793 is an equidigital number, since it uses as much as digits as its factorization.

61300644793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 43.

The spelling of 61300644793 in words is "sixty-one billion, three hundred million, six hundred forty-four thousand, seven hundred ninety-three".