289420051800557 has 2 divisors, whose sum is σ = 289420051800558. Its totient is φ = 289420051800556.

The previous prime is 289420051800553. The next prime is 289420051800673. The reversal of 289420051800557 is 755008150024982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160714974830281 + 128705076970276 = 12677341^2 + 11344826^2 .

It is a cyclic number.

It is not a de Polignac number, because 289420051800557 - 2² = 289420051800553 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289420051800553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144710025900278 + 144710025900279.

It is an arithmetic number, because the mean of its divisors is an integer number (144710025900279).

Almost surely, 2^{289420051800557} is an apocalyptic number.

It is an amenable number.

289420051800557 is a deficient number, since it is larger than the sum of its proper divisors (1).

289420051800557 is an equidigital number, since it uses as much as digits as its factorization.

289420051800557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064000, while the sum is 56.

The spelling of 289420051800557 in words is "two hundred eighty-nine trillion, four hundred twenty billion, fifty-one million, eight hundred thousand, five hundred fifty-seven".