7138612439 has 8 divisors (see below), whose sum is σ = 8162451360. Its totient is φ = 6115782816.

The previous prime is 7138612391. The next prime is 7138612447. The reversal of 7138612439 is 9342168317.

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 7138612439 - 2⁸ = 7138612183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7138612439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138612139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237104 + ... + 265509.

It is an arithmetic number, because the mean of its divisors is an integer number (1020306420).

Almost surely, 2^7138612439 is an apocalyptic number.

7138612439 is a deficient number, since it is larger than the sum of its proper divisors (1023838921).

7138612439 is a wasteful number, since it uses less digits than its factorization.

7138612439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504649.

The product of its digits is 217728, while the sum is 44.

The square root of 7138612439 is about 84490.3097343121. The cubic root of 7138612439 is about 1925.4752243483.

The spelling of 7138612439 in words is "seven billion, one hundred thirty-eight million, six hundred twelve thousand, four hundred thirty-nine".