53805889929689 has 2 divisors, whose sum is σ = 53805889929690. Its totient is φ = 53805889929688.

The previous prime is 53805889929683. The next prime is 53805889929707. The reversal of 53805889929689 is 98692998850835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38223986328025 + 15581903601664 = 6182555^2 + 3947392^2 .

It is a cyclic number.

It is not a de Polignac number, because 53805889929689 - 2²⁰ = 53805888881113 is a prime.

It is a super-2 number, since 2×53805889929689² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53805889929683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26902944964844 + 26902944964845.

It is an arithmetic number, because the mean of its divisors is an integer number (26902944964845).

Almost surely, 2^{53805889929689} is an apocalyptic number.

It is an amenable number.

53805889929689 is a deficient number, since it is larger than the sum of its proper divisors (1).

53805889929689 is an equidigital number, since it uses as much as digits as its factorization.

53805889929689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24186470400, while the sum is 89.

The spelling of 53805889929689 in words is "fifty-three trillion, eight hundred five billion, eight hundred eighty-nine million, nine hundred twenty-nine thousand, six hundred eighty-nine".