1634649271153 has 2 divisors, whose sum is σ = 1634649271154. Its totient is φ = 1634649271152.

The previous prime is 1634649271121. The next prime is 1634649271201. The reversal of 1634649271153 is 3511729464361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1549108815424 + 85540455729 = 1244632^2 + 292473^2 .

It is a cyclic number.

It is not a de Polignac number, because 1634649271153 - 2⁵ = 1634649271121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1634649271153.

It is not a weakly prime, because it can be changed into another prime (1634649271103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817324635576 + 817324635577.

It is an arithmetic number, because the mean of its divisors is an integer number (817324635577).

Almost surely, 2^{1634649271153} is an apocalyptic number.

It is an amenable number.

1634649271153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1634649271153 is an equidigital number, since it uses as much as digits as its factorization.

1634649271153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 52.

The spelling of 1634649271153 in words is "one trillion, six hundred thirty-four billion, six hundred forty-nine million, two hundred seventy-one thousand, one hundred fifty-three".