348936393977 has 2 divisors, whose sum is σ = 348936393978. Its totient is φ = 348936393976.

The previous prime is 348936393943. The next prime is 348936394013. The reversal of 348936393977 is 779393639843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 293998190656 + 54938203321 = 542216^2 + 234389^2 .

It is a cyclic number.

It is not a de Polignac number, because 348936393977 - 2⁸ = 348936393721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 348936393977.

It is not a weakly prime, because it can be changed into another prime (348936393907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174468196988 + 174468196989.

It is an arithmetic number, because the mean of its divisors is an integer number (174468196989).

Almost surely, 2^348936393977 is an apocalyptic number.

It is an amenable number.

348936393977 is a deficient number, since it is larger than the sum of its proper divisors (1).

348936393977 is an equidigital number, since it uses as much as digits as its factorization.

348936393977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 555532992, while the sum is 71.

The spelling of 348936393977 in words is "three hundred forty-eight billion, nine hundred thirty-six million, three hundred ninety-three thousand, nine hundred seventy-seven".