23576728139 has 2 divisors, whose sum is σ = 23576728140. Its totient is φ = 23576728138.

The previous prime is 23576728121. The next prime is 23576728181. The reversal of 23576728139 is 93182767532.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23576728139 is a prime.

It is not a weakly prime, because it can be changed into another prime (23576628139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11788364069 + 11788364070.

It is an arithmetic number, because the mean of its divisors is an integer number (11788364070).

Almost surely, 2^23576728139 is an apocalyptic number.

23576728139 is a deficient number, since it is larger than the sum of its proper divisors (1).

23576728139 is an equidigital number, since it uses as much as digits as its factorization.

23576728139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 53.

The spelling of 23576728139 in words is "twenty-three billion, five hundred seventy-six million, seven hundred twenty-eight thousand, one hundred thirty-nine".