242775750352409 has 2 divisors, whose sum is σ = 242775750352410. Its totient is φ = 242775750352408.

The previous prime is 242775750352379. The next prime is 242775750352493. The reversal of 242775750352409 is 904253057577242.

It is a happy number.

242775750352409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234965977960000 + 7809772392409 = 15328600^2 + 2794597^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242775750352409 is a prime.

It is not a weakly prime, because it can be changed into another prime (242775750357409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121387875176204 + 121387875176205.

It is an arithmetic number, because the mean of its divisors is an integer number (121387875176205).

Almost surely, 2^{242775750352409} is an apocalyptic number.

It is an amenable number.

242775750352409 is a deficient number, since it is larger than the sum of its proper divisors (1).

242775750352409 is an equidigital number, since it uses as much as digits as its factorization.

242775750352409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176000, while the sum is 62.

The spelling of 242775750352409 in words is "two hundred forty-two trillion, seven hundred seventy-five billion, seven hundred fifty million, three hundred fifty-two thousand, four hundred nine".