348027071921 has 2 divisors, whose sum is σ = 348027071922. Its totient is φ = 348027071920.

The previous prime is 348027071897. The next prime is 348027071927. The reversal of 348027071921 is 129170720843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 315663061921 + 32364010000 = 561839^2 + 179900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-348027071921 is a prime.

It is a super-2 number, since 2×348027071921² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (348027071927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174013535960 + 174013535961.

It is an arithmetic number, because the mean of its divisors is an integer number (174013535961).

Almost surely, 2^348027071921 is an apocalyptic number.

It is an amenable number.

348027071921 is a deficient number, since it is larger than the sum of its proper divisors (1).

348027071921 is an equidigital number, since it uses as much as digits as its factorization.

348027071921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 348027071921 in words is "three hundred forty-eight billion, twenty-seven million, seventy-one thousand, nine hundred twenty-one".