545263215439 has 2 divisors, whose sum is σ = 545263215440. Its totient is φ = 545263215438.

The previous prime is 545263215437. The next prime is 545263215451. The reversal of 545263215439 is 934512362545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545263215439 - 2¹ = 545263215437 is a prime.

It is a super-2 number, since 2×545263215439² (a number of 24 digits) contains 22 as substring.

Together with 545263215437, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 545263215392 and 545263215401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545263215433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272631607719 + 272631607720.

It is an arithmetic number, because the mean of its divisors is an integer number (272631607720).

Almost surely, 2^545263215439 is an apocalyptic number.

545263215439 is a deficient number, since it is larger than the sum of its proper divisors (1).

545263215439 is an equidigital number, since it uses as much as digits as its factorization.

545263215439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888000, while the sum is 49.

The spelling of 545263215439 in words is "five hundred forty-five billion, two hundred sixty-three million, two hundred fifteen thousand, four hundred thirty-nine".