51846719933 has 2 divisors, whose sum is σ = 51846719934. Its totient is φ = 51846719932.

The previous prime is 51846719923. The next prime is 51846719963. The reversal of 51846719933 is 33991764815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33987872164 + 17858847769 = 184358^2 + 133637^2 .

It is a cyclic number.

It is not a de Polignac number, because 51846719933 - 2²² = 51842525629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51846719923) 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, 25923359966 + 25923359967.

It is an arithmetic number, because the mean of its divisors is an integer number (25923359967).

Almost surely, 2^51846719933 is an apocalyptic number.

It is an amenable number.

51846719933 is a deficient number, since it is larger than the sum of its proper divisors (1).

51846719933 is an equidigital number, since it uses as much as digits as its factorization.

51846719933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 56.

The spelling of 51846719933 in words is "fifty-one billion, eight hundred forty-six million, seven hundred nineteen thousand, nine hundred thirty-three".