543522378499 has 2 divisors, whose sum is σ = 543522378500. Its totient is φ = 543522378498.

The previous prime is 543522378493. The next prime is 543522378571. The reversal of 543522378499 is 994873225345.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 543522378499 - 2⁹ = 543522377987 is a prime.

It is not a weakly prime, because it can be changed into another prime (543522378493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271761189249 + 271761189250.

It is an arithmetic number, because the mean of its divisors is an integer number (271761189250).

Almost surely, 2^543522378499 is an apocalyptic number.

543522378499 is a deficient number, since it is larger than the sum of its proper divisors (1).

543522378499 is an equidigital number, since it uses as much as digits as its factorization.

543522378499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65318400, while the sum is 61.

The spelling of 543522378499 in words is "five hundred forty-three billion, five hundred twenty-two million, three hundred seventy-eight thousand, four hundred ninety-nine".