6828557101 has 4 divisors (see below), whose sum is σ = 7125450912. Its totient is φ = 6531663292.

The previous prime is 6828557081. The next prime is 6828557111. The reversal of 6828557101 is 1017558286.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1017558286 = 2 ⋅508779143.

It is a cyclic number.

It is not a de Polignac number, because 6828557101 - 2⁵ = 6828557069 is a prime.

It is a super-3 number, since 3×6828557101³ (a number of 30 digits) contains 333 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 (6828557111) 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, 148446871 + ... + 148446916.

It is an arithmetic number, because the mean of its divisors is an integer number (1781362728).

Almost surely, 2^6828557101 is an apocalyptic number.

It is an amenable number.

6828557101 is a deficient number, since it is larger than the sum of its proper divisors (296893811).

6828557101 is a wasteful number, since it uses less digits than its factorization.

6828557101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296893810.

The product of its (nonzero) digits is 134400, while the sum is 43.

The square root of 6828557101 is about 82635.0839595386. The cubic root of 6828557101 is about 1897.1848523073.

The spelling of 6828557101 in words is "six billion, eight hundred twenty-eight million, five hundred fifty-seven thousand, one hundred one".