163734452857 has 2 divisors, whose sum is σ = 163734452858. Its totient is φ = 163734452856.

The previous prime is 163734452837. The next prime is 163734452879. The reversal of 163734452857 is 758254437361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113463880336 + 50270572521 = 336844^2 + 224211^2 .

It is a cyclic number.

It is not a de Polignac number, because 163734452857 - 2¹⁹ = 163733928569 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163734452798 and 163734452807.

It is not a weakly prime, because it can be changed into another prime (163734452807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81867226428 + 81867226429.

It is an arithmetic number, because the mean of its divisors is an integer number (81867226429).

Almost surely, 2^163734452857 is an apocalyptic number.

It is an amenable number.

163734452857 is a deficient number, since it is larger than the sum of its proper divisors (1).

163734452857 is an equidigital number, since it uses as much as digits as its factorization.

163734452857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16934400, while the sum is 55.

The spelling of 163734452857 in words is "one hundred sixty-three billion, seven hundred thirty-four million, four hundred fifty-two thousand, eight hundred fifty-seven".