347456979871 has 2 divisors, whose sum is σ = 347456979872. Its totient is φ = 347456979870.

The previous prime is 347456979791. The next prime is 347456979913. The reversal of 347456979871 is 178979654743.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 347456979871 - 2³¹ = 345309496223 is a prime.

It is a super-2 number, since 2×347456979871² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 347456979871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (347456979371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173728489935 + 173728489936.

It is an arithmetic number, because the mean of its divisors is an integer number (173728489936).

Almost surely, 2^347456979871 is an apocalyptic number.

347456979871 is a deficient number, since it is larger than the sum of its proper divisors (1).

347456979871 is an equidigital number, since it uses as much as digits as its factorization.

347456979871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 320060160, while the sum is 70.

The spelling of 347456979871 in words is "three hundred forty-seven billion, four hundred fifty-six million, nine hundred seventy-nine thousand, eight hundred seventy-one".