5642278266239 has 16 divisors (see below), whose sum is σ = 5896402071840. Its totient is φ = 5394291095040.

The previous prime is 5642278266223. The next prime is 5642278266241. The reversal of 5642278266239 is 9326628722465.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5642278266239 - 2⁴ = 5642278266223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5642278266739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2912174 + ... + 4445819.

It is an arithmetic number, because the mean of its divisors is an integer number (368525129490).

Almost surely, 2^{5642278266239} is an apocalyptic number.

5642278266239 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

5642278266239 is a deficient number, since it is larger than the sum of its proper divisors (254123805601).

5642278266239 is a wasteful number, since it uses less digits than its factorization.

5642278266239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7358410.

The product of its digits is 104509440, while the sum is 62.

The spelling of 5642278266239 in words is "five trillion, six hundred forty-two billion, two hundred seventy-eight million, two hundred sixty-six thousand, two hundred thirty-nine".