347875378009 has 2 divisors, whose sum is σ = 347875378010. Its totient is φ = 347875378008.

The previous prime is 347875377977. The next prime is 347875378033. The reversal of 347875378009 is 900873578743.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316288136025 + 31587241984 = 562395^2 + 177728^2 .

It is a cyclic number.

It is not a de Polignac number, because 347875378009 - 2⁵ = 347875377977 is a prime.

It is not a weakly prime, because it can be changed into another prime (347875378049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173937689004 + 173937689005.

It is an arithmetic number, because the mean of its divisors is an integer number (173937689005).

Almost surely, 2^347875378009 is an apocalyptic number.

It is an amenable number.

347875378009 is a deficient number, since it is larger than the sum of its proper divisors (1).

347875378009 is an equidigital number, since it uses as much as digits as its factorization.

347875378009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 347875378009 in words is "three hundred forty-seven billion, eight hundred seventy-five million, three hundred seventy-eight thousand, nine".