6906914656849 has 4 divisors (see below), whose sum is σ = 6906929795136. Its totient is φ = 6906899518564.

The previous prime is 6906914656843. The next prime is 6906914656891. The reversal of 6906914656849 is 9486564196096.

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 6906914656849 - 2⁹ = 6906914656337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6906914656843) 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, 6862789 + ... + 7804594.

It is an arithmetic number, because the mean of its divisors is an integer number (1726732448784).

Almost surely, 2^{6906914656849} is an apocalyptic number.

It is an amenable number.

6906914656849 is a deficient number, since it is larger than the sum of its proper divisors (15138287).

6906914656849 is a wasteful number, since it uses less digits than its factorization.

6906914656849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15138286.

The product of its (nonzero) digits is 604661760, while the sum is 73.

The spelling of 6906914656849 in words is "six trillion, nine hundred six billion, nine hundred fourteen million, six hundred fifty-six thousand, eight hundred forty-nine".