47780108845061 has 2 divisors, whose sum is σ = 47780108845062. Its totient is φ = 47780108845060.

The previous prime is 47780108845019. The next prime is 47780108845109. The reversal of 47780108845061 is 16054880108774.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43301256176161 + 4478852668900 = 6580369^2 + 2116330^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47780108845061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47780108845961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23890054422530 + 23890054422531.

It is an arithmetic number, because the mean of its divisors is an integer number (23890054422531).

Almost surely, 2^{47780108845061} is an apocalyptic number.

It is an amenable number.

47780108845061 is a deficient number, since it is larger than the sum of its proper divisors (1).

47780108845061 is an equidigital number, since it uses as much as digits as its factorization.

47780108845061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12042240, while the sum is 59.

The spelling of 47780108845061 in words is "forty-seven trillion, seven hundred eighty billion, one hundred eight million, eight hundred forty-five thousand, sixty-one".