7242110421457 has 2 divisors, whose sum is σ = 7242110421458. Its totient is φ = 7242110421456.

The previous prime is 7242110421439. The next prime is 7242110421461. The reversal of 7242110421457 is 7541240112427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5151125012881 + 2090985408576 = 2269609^2 + 1446024^2 .

It is a cyclic number.

It is not a de Polignac number, because 7242110421457 - 2¹¹ = 7242110419409 is a prime.

It is not a weakly prime, because it can be changed into another prime (7242110421407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3621055210728 + 3621055210729.

It is an arithmetic number, because the mean of its divisors is an integer number (3621055210729).

Almost surely, 2^{7242110421457} is an apocalyptic number.

It is an amenable number.

7242110421457 is a deficient number, since it is larger than the sum of its proper divisors (1).

7242110421457 is an equidigital number, since it uses as much as digits as its factorization.

7242110421457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125440, while the sum is 40.

The spelling of 7242110421457 in words is "seven trillion, two hundred forty-two billion, one hundred ten million, four hundred twenty-one thousand, four hundred fifty-seven".