34243534421 has 2 divisors, whose sum is σ = 34243534422. Its totient is φ = 34243534420.

The previous prime is 34243534417. The next prime is 34243534459. The reversal of 34243534421 is 12443534243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22299448900 + 11944085521 = 149330^2 + 109289^2 .

It is a cyclic number.

It is not a de Polignac number, because 34243534421 - 2² = 34243534417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34243534411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17121767210 + 17121767211.

It is an arithmetic number, because the mean of its divisors is an integer number (17121767211).

Almost surely, 2^34243534421 is an apocalyptic number.

It is an amenable number.

34243534421 is a deficient number, since it is larger than the sum of its proper divisors (1).

34243534421 is an equidigital number, since it uses as much as digits as its factorization.

34243534421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 35.

The spelling of 34243534421 in words is "thirty-four billion, two hundred forty-three million, five hundred thirty-four thousand, four hundred twenty-one".