253945334543389 has 2 divisors, whose sum is σ = 253945334543390. Its totient is φ = 253945334543388.

The previous prime is 253945334543377. The next prime is 253945334543443. The reversal of 253945334543389 is 983345433549352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152160440220889 + 101784894322500 = 12335333^2 + 10088850^2 .

It is a cyclic number.

It is not a de Polignac number, because 253945334543389 - 2¹³ = 253945334535197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253945334543489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126972667271694 + 126972667271695.

It is an arithmetic number, because the mean of its divisors is an integer number (126972667271695).

Almost surely, 2^{253945334543389} is an apocalyptic number.

It is an amenable number.

253945334543389 is a deficient number, since it is larger than the sum of its proper divisors (1).

253945334543389 is an equidigital number, since it uses as much as digits as its factorization.

253945334543389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2519424000, while the sum is 70.

The spelling of 253945334543389 in words is "two hundred fifty-three trillion, nine hundred forty-five billion, three hundred thirty-four million, five hundred forty-three thousand, three hundred eighty-nine".