6949479771 has 24 divisors (see below), whose sum is σ = 10833535440. Its totient is φ = 4267411776.

The previous prime is 6949479703. The next prime is 6949479799. The reversal of 6949479771 is 1779749496.

6949479771 is a `hidden beast` number, since 6 + 9 + 494 + 79 + 7 + 71 = 666.

It is not a de Polignac number, because 6949479771 - 2²² = 6945285467 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6949479699 and 6949479708.

It is not an unprimeable number, because it can be changed into a prime (6949479071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8956 + ... + 118233.

It is an arithmetic number, because the mean of its divisors is an integer number (451397310).

Almost surely, 2^6949479771 is an apocalyptic number.

6949479771 is a deficient number, since it is larger than the sum of its proper divisors (3884055669).

6949479771 is a wasteful number, since it uses less digits than its factorization.

6949479771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127675 (or 127672 counting only the distinct ones).

The product of its digits is 24004512, while the sum is 63.

The square root of 6949479771 is about 83363.5398180763. The cubic root of 6949479771 is about 1908.3180803181.

The spelling of 6949479771 in words is "six billion, nine hundred forty-nine million, four hundred seventy-nine thousand, seven hundred seventy-one".