51433943723 has 2 divisors, whose sum is σ = 51433943724. Its totient is φ = 51433943722.

The previous prime is 51433943713. The next prime is 51433943767. The reversal of 51433943723 is 32734933415.

It is an a-pointer prime, because the next prime (51433943767) can be obtained adding 51433943723 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51433943723 - 2¹⁶ = 51433878187 is a prime.

It is a super-2 number, since 2×51433943723² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51433943713) 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, 25716971861 + 25716971862.

It is an arithmetic number, because the mean of its divisors is an integer number (25716971862).

Almost surely, 2^51433943723 is an apocalyptic number.

51433943723 is a deficient number, since it is larger than the sum of its proper divisors (1).

51433943723 is an equidigital number, since it uses as much as digits as its factorization.

51433943723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 44.

The spelling of 51433943723 in words is "fifty-one billion, four hundred thirty-three million, nine hundred forty-three thousand, seven hundred twenty-three".