5128081823 has 2 divisors, whose sum is σ = 5128081824. Its totient is φ = 5128081822.

The previous prime is 5128081813. The next prime is 5128081837. The reversal of 5128081823 is 3281808215.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5128081823 - 2⁶ = 5128081759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5128081813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2564040911 + 2564040912.

It is an arithmetic number, because the mean of its divisors is an integer number (2564040912).

Almost surely, 2^5128081823 is an apocalyptic number.

5128081823 is a deficient number, since it is larger than the sum of its proper divisors (1).

5128081823 is an equidigital number, since it uses as much as digits as its factorization.

5128081823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 5128081823 is about 71610.6264670265. The cubic root of 5128081823 is about 1724.4541377796.

The spelling of 5128081823 in words is "five billion, one hundred twenty-eight million, eighty-one thousand, eight hundred twenty-three".