253345117673 has 2 divisors, whose sum is σ = 253345117674. Its totient is φ = 253345117672.

The previous prime is 253345117633. The next prime is 253345117679. The reversal of 253345117673 is 376711543352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169243377664 + 84101740009 = 411392^2 + 290003^2 .

It is a cyclic number.

It is not a de Polignac number, because 253345117673 - 2¹⁶ = 253345052137 is a prime.

It is not a weakly prime, because it can be changed into another prime (253345117679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126672558836 + 126672558837.

It is an arithmetic number, because the mean of its divisors is an integer number (126672558837).

Almost surely, 2^253345117673 is an apocalyptic number.

It is an amenable number.

253345117673 is a deficient number, since it is larger than the sum of its proper divisors (1).

253345117673 is an equidigital number, since it uses as much as digits as its factorization.

253345117673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1587600, while the sum is 47.

The spelling of 253345117673 in words is "two hundred fifty-three billion, three hundred forty-five million, one hundred seventeen thousand, six hundred seventy-three".