6111668947 has 2 divisors, whose sum is σ = 6111668948. Its totient is φ = 6111668946.

The previous prime is 6111668939. The next prime is 6111668993. The reversal of 6111668947 is 7498661116.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6111668947 - 2³ = 6111668939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6111668947.

It is not a weakly prime, because it can be changed into another prime (6111668347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055834473 + 3055834474.

It is an arithmetic number, because the mean of its divisors is an integer number (3055834474).

Almost surely, 2^6111668947 is an apocalyptic number.

6111668947 is a deficient number, since it is larger than the sum of its proper divisors (1).

6111668947 is an equidigital number, since it uses as much as digits as its factorization.

6111668947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 49.

The square root of 6111668947 is about 78177.1638459723. The cubic root of 6111668947 is about 1828.3244786081.

The spelling of 6111668947 in words is "six billion, one hundred eleven million, six hundred sixty-eight thousand, nine hundred forty-seven".