557454643189 has 2 divisors, whose sum is σ = 557454643190. Its totient is φ = 557454643188.

The previous prime is 557454643171. The next prime is 557454643237. The reversal of 557454643189 is 981346454755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 408953855025 + 148500788164 = 639495^2 + 385358^2 .

It is a cyclic number.

It is not a de Polignac number, because 557454643189 - 2⁵ = 557454643157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557454643289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278727321594 + 278727321595.

It is an arithmetic number, because the mean of its divisors is an integer number (278727321595).

Almost surely, 2^557454643189 is an apocalyptic number.

It is an amenable number.

557454643189 is a deficient number, since it is larger than the sum of its proper divisors (1).

557454643189 is an equidigital number, since it uses as much as digits as its factorization.

557454643189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576000, while the sum is 61.

The spelling of 557454643189 in words is "five hundred fifty-seven billion, four hundred fifty-four million, six hundred forty-three thousand, one hundred eighty-nine".