4278342945 has 8 divisors (see below), whose sum is σ = 6845348736. Its totient is φ = 2281782896.

The previous prime is 4278342911. The next prime is 4278343019. The reversal of 4278342945 is 5492438724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4278342945 - 2¹⁵ = 4278310177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4278342894 and 4278342903.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142611417 + ... + 142611446.

It is an arithmetic number, because the mean of its divisors is an integer number (855668592).

Almost surely, 2^4278342945 is an apocalyptic number.

It is an amenable number.

4278342945 is a deficient number, since it is larger than the sum of its proper divisors (2567005791).

4278342945 is a wasteful number, since it uses less digits than its factorization.

4278342945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285222871.

The product of its digits is 1935360, while the sum is 48.

The square root of 4278342945 is about 65409.0432967797. The cubic root of 4278342945 is about 1623.3987154631.

The spelling of 4278342945 in words is "four billion, two hundred seventy-eight million, three hundred forty-two thousand, nine hundred forty-five".