6945081947 has 4 divisors (see below), whose sum is σ = 7092849696. Its totient is φ = 6797314200.

The previous prime is 6945081937. The next prime is 6945081953. The reversal of 6945081947 is 7491805496.

6945081947 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6945081947 - 2¹⁶ = 6945016411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6945081937) 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, 73883804 + ... + 73883897.

It is an arithmetic number, because the mean of its divisors is an integer number (1773212424).

Almost surely, 2^6945081947 is an apocalyptic number.

6945081947 is a deficient number, since it is larger than the sum of its proper divisors (147767749).

6945081947 is a wasteful number, since it uses less digits than its factorization.

6945081947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147767748.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 6945081947 is about 83337.1582608862. The cubic root of 6945081947 is about 1907.9154497963.

The spelling of 6945081947 in words is "six billion, nine hundred forty-five million, eighty-one thousand, nine hundred forty-seven".