542546672189 has 2 divisors, whose sum is σ = 542546672190. Its totient is φ = 542546672188.

The previous prime is 542546672179. The next prime is 542546672197. The reversal of 542546672189 is 981276645245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 374678652100 + 167868020089 = 612110^2 + 409717^2 .

It is a cyclic number.

It is not a de Polignac number, because 542546672189 - 2²⁸ = 542278236733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542546672179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271273336094 + 271273336095.

It is an arithmetic number, because the mean of its divisors is an integer number (271273336095).

Almost surely, 2^542546672189 is an apocalyptic number.

It is an amenable number.

542546672189 is a deficient number, since it is larger than the sum of its proper divisors (1).

542546672189 is an equidigital number, since it uses as much as digits as its factorization.

542546672189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29030400, while the sum is 59.

The spelling of 542546672189 in words is "five hundred forty-two billion, five hundred forty-six million, six hundred seventy-two thousand, one hundred eighty-nine".