800000000047 has 2 divisors, whose sum is σ = 800000000048. Its totient is φ = 800000000046.

The previous prime is 799999999991. The next prime is 800000000081. The reversal of 800000000047 is 740000000008.

It is a happy number.

800000000047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-800000000047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 799999999952 and 800000000033.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800000060047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400000000023 + 400000000024.

It is an arithmetic number, because the mean of its divisors is an integer number (400000000024).

Almost surely, 2^800000000047 is an apocalyptic number.

800000000047 is a deficient number, since it is larger than the sum of its proper divisors (1).

800000000047 is an equidigital number, since it uses as much as digits as its factorization.

800000000047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 19.

The spelling of 800000000047 in words is "eight hundred billion, forty-seven", and thus it is an aban number.