67557483439 has 4 divisors (see below), whose sum is σ = 67601098600. Its totient is φ = 67513868280.

The previous prime is 67557483419. The next prime is 67557483451. The reversal of 67557483439 is 93438475576.

It is a happy number.

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 67557483439 - 2⁵ = 67557483407 is a prime.

It is a super-2 number, since 2×67557483439² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67557483419) 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, 21805257 + ... + 21808354.

It is an arithmetic number, because the mean of its divisors is an integer number (16900274650).

Almost surely, 2^67557483439 is an apocalyptic number.

67557483439 is a deficient number, since it is larger than the sum of its proper divisors (43615161).

67557483439 is a wasteful number, since it uses less digits than its factorization.

67557483439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43615160.

The product of its digits is 76204800, while the sum is 61.

The spelling of 67557483439 in words is "sixty-seven billion, five hundred fifty-seven million, four hundred eighty-three thousand, four hundred thirty-nine".