349438674406957 has 2 divisors, whose sum is σ = 349438674406958. Its totient is φ = 349438674406956.

The previous prime is 349438674406873. The next prime is 349438674407021. The reversal of 349438674406957 is 759604476834943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328871188657636 + 20567485749321 = 18134806^2 + 4535139^2 .

It is an emirp because it is prime and its reverse (759604476834943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349438674406957 - 2²³ = 349438666018349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349438674404957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174719337203478 + 174719337203479.

It is an arithmetic number, because the mean of its divisors is an integer number (174719337203479).

Almost surely, 2^{349438674406957} is an apocalyptic number.

It is an amenable number.

349438674406957 is a deficient number, since it is larger than the sum of its proper divisors (1).

349438674406957 is an equidigital number, since it uses as much as digits as its factorization.

349438674406957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13168189440, while the sum is 79.

The spelling of 349438674406957 in words is "three hundred forty-nine trillion, four hundred thirty-eight billion, six hundred seventy-four million, four hundred six thousand, nine hundred fifty-seven".