4278352324445 has 4 divisors (see below), whose sum is σ = 5134022789340. Its totient is φ = 3422681859552.

The previous prime is 4278352324403. The next prime is 4278352324457. The reversal of 4278352324445 is 5444232538724.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1876404092761 + 2401948231684 = 1369819^2 + 1549822^2 .

It is a cyclic number.

It is not a de Polignac number, because 4278352324445 - 2³⁴ = 4261172455261 is a prime.

It is a super-2 number, since 2×4278352324445² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 427835232440 + ... + 427835232449.

It is an arithmetic number, because the mean of its divisors is an integer number (1283505697335).

Almost surely, 2^{4278352324445} is an apocalyptic number.

It is an amenable number.

4278352324445 is a deficient number, since it is larger than the sum of its proper divisors (855670464895).

4278352324445 is an equidigital number, since it uses as much as digits as its factorization.

4278352324445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855670464894.

The product of its digits is 25804800, while the sum is 53.

The spelling of 4278352324445 in words is "four trillion, two hundred seventy-eight billion, three hundred fifty-two million, three hundred twenty-four thousand, four hundred forty-five".