6778242101 has 4 divisors (see below), whose sum is σ = 6996895104. Its totient is φ = 6559589100.

The previous prime is 6778242049. The next prime is 6778242113. The reversal of 6778242101 is 1012428776.

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.

It is a cyclic number.

It is not a de Polignac number, because 6778242101 - 2¹⁴ = 6778225717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6778248101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109326455 + ... + 109326516.

It is an arithmetic number, because the mean of its divisors is an integer number (1749223776).

Almost surely, 2^6778242101 is an apocalyptic number.

It is an amenable number.

6778242101 is a deficient number, since it is larger than the sum of its proper divisors (218653003).

6778242101 is a wasteful number, since it uses less digits than its factorization.

6778242101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218653002.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 6778242101 is about 82330.0801712230. The cubic root of 6778242101 is about 1892.5136716000.

The spelling of 6778242101 in words is "six billion, seven hundred seventy-eight million, two hundred forty-two thousand, one hundred one".