348895320821 has 2 divisors, whose sum is σ = 348895320822. Its totient is φ = 348895320820.

The previous prime is 348895320797. The next prime is 348895320841. The reversal of 348895320821 is 128023598843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314378883025 + 34516437796 = 560695^2 + 185786^2 .

It is a cyclic number.

It is not a de Polignac number, because 348895320821 - 2⁶ = 348895320757 is a prime.

It is a super-2 number, since 2×348895320821² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348895320841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174447660410 + 174447660411.

It is an arithmetic number, because the mean of its divisors is an integer number (174447660411).

Almost surely, 2^348895320821 is an apocalyptic number.

It is an amenable number.

348895320821 is a deficient number, since it is larger than the sum of its proper divisors (1).

348895320821 is an equidigital number, since it uses as much as digits as its factorization.

348895320821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 348895320821 in words is "three hundred forty-eight billion, eight hundred ninety-five million, three hundred twenty thousand, eight hundred twenty-one".