6894858949 has 4 divisors (see below), whose sum is σ = 7521664320. Its totient is φ = 6268053580.

The previous prime is 6894858937. The next prime is 6894858959. The reversal of 6894858949 is 9498584986.

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 6894858949 - 2⁵ = 6894858917 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 (6894858959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313402669 + ... + 313402690.

It is an arithmetic number, because the mean of its divisors is an integer number (1880416080).

Almost surely, 2^6894858949 is an apocalyptic number.

It is an amenable number.

6894858949 is a deficient number, since it is larger than the sum of its proper divisors (626805371).

6894858949 is a wasteful number, since it uses less digits than its factorization.

6894858949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626805370.

The product of its digits is 179159040, while the sum is 70.

The square root of 6894858949 is about 83035.2873722973. The cubic root of 6894858949 is about 1903.3053222074.

The spelling of 6894858949 in words is "six billion, eight hundred ninety-four million, eight hundred fifty-eight thousand, nine hundred forty-nine".