348681138577 has 2 divisors, whose sum is σ = 348681138578. Its totient is φ = 348681138576.

The previous prime is 348681138557. The next prime is 348681138653. The reversal of 348681138577 is 775831186843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 235505413521 + 113175725056 = 485289^2 + 336416^2 .

It is an emirp because it is prime and its reverse (775831186843) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 348681138577 - 2²⁷ = 348546920849 is a prime.

It is not a weakly prime, because it can be changed into another prime (348681138527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174340569288 + 174340569289.

It is an arithmetic number, because the mean of its divisors is an integer number (174340569289).

Almost surely, 2^348681138577 is an apocalyptic number.

It is an amenable number.

348681138577 is a deficient number, since it is larger than the sum of its proper divisors (1).

348681138577 is an equidigital number, since it uses as much as digits as its factorization.

348681138577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27095040, while the sum is 61.

The spelling of 348681138577 in words is "three hundred forty-eight billion, six hundred eighty-one million, one hundred thirty-eight thousand, five hundred seventy-seven".