6557759523839 has 8 divisors (see below), whose sum is σ = 6625416631680. Its totient is φ = 6490103463936.

The previous prime is 6557759523823. The next prime is 6557759523851. The reversal of 6557759523839 is 9383259577556.

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 6557759523839 - 2⁴ = 6557759523823 is a prime.

It is a super-2 number, since 2×6557759523839² (a number of 26 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 (6557759520839) 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, 22186367 + ... + 22479999.

It is an arithmetic number, because the mean of its divisors is an integer number (828177078960).

Almost surely, 2^{6557759523839} is an apocalyptic number.

6557759523839 is a deficient number, since it is larger than the sum of its proper divisors (67657107841).

6557759523839 is a wasteful number, since it uses less digits than its factorization.

6557759523839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523969.

The product of its digits is 2143260000, while the sum is 74.

The spelling of 6557759523839 in words is "six trillion, five hundred fifty-seven billion, seven hundred fifty-nine million, five hundred twenty-three thousand, eight hundred thirty-nine".