51323023203979 has 2 divisors, whose sum is σ = 51323023203980. Its totient is φ = 51323023203978.

The previous prime is 51323023203973. The next prime is 51323023204021. The reversal of 51323023203979 is 97930232032315.

51323023203979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51323023203979 - 2¹⁷ = 51323023072907 is a prime.

It is not a weakly prime, because it can be changed into another prime (51323023203973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25661511601989 + 25661511601990.

It is an arithmetic number, because the mean of its divisors is an integer number (25661511601990).

Almost surely, 2^{51323023203979} is an apocalyptic number.

51323023203979 is a deficient number, since it is larger than the sum of its proper divisors (1).

51323023203979 is an equidigital number, since it uses as much as digits as its factorization.

51323023203979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1837080, while the sum is 49.

The spelling of 51323023203979 in words is "fifty-one trillion, three hundred twenty-three billion, twenty-three million, two hundred three thousand, nine hundred seventy-nine".