253673634317 has 2 divisors, whose sum is σ = 253673634318. Its totient is φ = 253673634316.

The previous prime is 253673634289. The next prime is 253673634407. The reversal of 253673634317 is 713436376352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154239994756 + 99433639561 = 392734^2 + 315331^2 .

It is a cyclic number.

It is not a de Polignac number, because 253673634317 - 2¹⁶ = 253673568781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253673694317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126836817158 + 126836817159.

It is an arithmetic number, because the mean of its divisors is an integer number (126836817159).

Almost surely, 2^253673634317 is an apocalyptic number.

It is an amenable number.

253673634317 is a deficient number, since it is larger than the sum of its proper divisors (1).

253673634317 is an equidigital number, since it uses as much as digits as its factorization.

253673634317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5715360, while the sum is 50.

The spelling of 253673634317 in words is "two hundred fifty-three billion, six hundred seventy-three million, six hundred thirty-four thousand, three hundred seventeen".