427228679139 has 4 divisors (see below), whose sum is σ = 569638238856. Its totient is φ = 284819119424.

The previous prime is 427228679117. The next prime is 427228679147. The reversal of 427228679139 is 931976822724.

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

It is a cyclic number.

It is not a de Polignac number, because 427228679139 - 2⁸ = 427228678883 is a prime.

It is a super-2 number, since 2×427228679139² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (427228678139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71204779854 + ... + 71204779859.

It is an arithmetic number, because the mean of its divisors is an integer number (142409559714).

Almost surely, 2^427228679139 is an apocalyptic number.

427228679139 is a deficient number, since it is larger than the sum of its proper divisors (142409559717).

427228679139 is a wasteful number, since it uses less digits than its factorization.

427228679139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142409559716.

The product of its digits is 18289152, while the sum is 60.

The spelling of 427228679139 in words is "four hundred twenty-seven billion, two hundred twenty-eight million, six hundred seventy-nine thousand, one hundred thirty-nine".