347457245561 has 2 divisors, whose sum is σ = 347457245562. Its totient is φ = 347457245560.

The previous prime is 347457245543. The next prime is 347457245567. The reversal of 347457245561 is 165542754743.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337118423161 + 10338822400 = 580619^2 + 101680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-347457245561 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (347457245567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173728622780 + 173728622781.

It is an arithmetic number, because the mean of its divisors is an integer number (173728622781).

Almost surely, 2^347457245561 is an apocalyptic number.

It is an amenable number.

347457245561 is a deficient number, since it is larger than the sum of its proper divisors (1).

347457245561 is an equidigital number, since it uses as much as digits as its factorization.

347457245561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112000, while the sum is 53.

The spelling of 347457245561 in words is "three hundred forty-seven billion, four hundred fifty-seven million, two hundred forty-five thousand, five hundred sixty-one".