51966714291 has 16 divisors (see below), whose sum is σ = 69694015776. Its totient is φ = 34442182656.

The previous prime is 51966714287. The next prime is 51966714301. The reversal of 51966714291 is 19241766915.

It is a happy number.

It is not a de Polignac number, because 51966714291 - 2² = 51966714287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51966714091) 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 in 15 ways as a sum of consecutive naturals, for example, 870291 + ... + 928083.

It is an arithmetic number, because the mean of its divisors is an integer number (4355875986).

Almost surely, 2^51966714291 is an apocalyptic number.

51966714291 is a deficient number, since it is larger than the sum of its proper divisors (17727301485).

51966714291 is a wasteful number, since it uses less digits than its factorization.

51966714291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59542.

The product of its digits is 816480, while the sum is 51.

The spelling of 51966714291 in words is "fifty-one billion, nine hundred sixty-six million, seven hundred fourteen thousand, two hundred ninety-one".