4542121620329 has 2 divisors, whose sum is σ = 4542121620330. Its totient is φ = 4542121620328.

The previous prime is 4542121620271. The next prime is 4542121620347. The reversal of 4542121620329 is 9230261212454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4447902090025 + 94219530304 = 2109005^2 + 306952^2 .

It is a cyclic number.

It is not a de Polignac number, because 4542121620329 - 2¹² = 4542121616233 is a prime.

It is not a weakly prime, because it can be changed into another prime (4542121620389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2271060810164 + 2271060810165.

It is an arithmetic number, because the mean of its divisors is an integer number (2271060810165).

Almost surely, 2^{4542121620329} is an apocalyptic number.

It is an amenable number.

4542121620329 is a deficient number, since it is larger than the sum of its proper divisors (1).

4542121620329 is an equidigital number, since it uses as much as digits as its factorization.

4542121620329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 4542121620329 in words is "four trillion, five hundred forty-two billion, one hundred twenty-one million, six hundred twenty thousand, three hundred twenty-nine".