6947049869 has 2 divisors, whose sum is σ = 6947049870. Its totient is φ = 6947049868.

The previous prime is 6947049839. The next prime is 6947049911. The reversal of 6947049869 is 9689407496.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4735228969 + 2211820900 = 68813^2 + 47030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6947049869 is a prime.

It is a super-2 number, since 2×6947049869² = 96523003764745834322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6947049829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3473524934 + 3473524935.

It is an arithmetic number, because the mean of its divisors is an integer number (3473524935).

Almost surely, 2^6947049869 is an apocalyptic number.

It is an amenable number.

6947049869 is a deficient number, since it is larger than the sum of its proper divisors (1).

6947049869 is an equidigital number, since it uses as much as digits as its factorization.

6947049869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23514624, while the sum is 62.

The square root of 6947049869 is about 83348.9644146824. The cubic root of 6947049869 is about 1908.0956384171.

The spelling of 6947049869 in words is "six billion, nine hundred forty-seven million, forty-nine thousand, eight hundred sixty-nine".