5678615438 has 4 divisors (see below), whose sum is σ = 8517923160. Its totient is φ = 2839307718.

The previous prime is 5678615431. The next prime is 5678615447. The reversal of 5678615438 is 8345168765.

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

It is a super-4 number, since 4×5678615438⁴ (a number of 40 digits) contains 4444 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5678615438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5678615431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1419653858 + ... + 1419653861.

It is an arithmetic number, because the mean of its divisors is an integer number (2129480790).

Almost surely, 2^5678615438 is an apocalyptic number.

5678615438 is a deficient number, since it is larger than the sum of its proper divisors (2839307722).

5678615438 is a wasteful number, since it uses less digits than its factorization.

5678615438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2839307721.

The product of its digits is 4838400, while the sum is 53.

The square root of 5678615438 is about 75356.5885507034. The cubic root of 5678615438 is about 1784.0792943952.

The spelling of 5678615438 in words is "five billion, six hundred seventy-eight million, six hundred fifteen thousand, four hundred thirty-eight".