51182474939 has 2 divisors, whose sum is σ = 51182474940. Its totient is φ = 51182474938.

The previous prime is 51182474899. The next prime is 51182474951. The reversal of 51182474939 is 93947428115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51182474939 - 2¹⁶ = 51182409403 is a prime.

It is not a weakly prime, because it can be changed into another prime (51182471939) 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, 25591237469 + 25591237470.

It is an arithmetic number, because the mean of its divisors is an integer number (25591237470).

Almost surely, 2^51182474939 is an apocalyptic number.

51182474939 is a deficient number, since it is larger than the sum of its proper divisors (1).

51182474939 is an equidigital number, since it uses as much as digits as its factorization.

51182474939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 53.

The spelling of 51182474939 in words is "fifty-one billion, one hundred eighty-two million, four hundred seventy-four thousand, nine hundred thirty-nine".