51972122606923 has 2 divisors, whose sum is σ = 51972122606924. Its totient is φ = 51972122606922.

The previous prime is 51972122606879. The next prime is 51972122606981. The reversal of 51972122606923 is 32960622127915.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51972122606923 - 2¹⁷ = 51972122475851 is a prime.

It is a super-2 number, since 2×51972122606923² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51972122616923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25986061303461 + 25986061303462.

It is an arithmetic number, because the mean of its divisors is an integer number (25986061303462).

Almost surely, 2^{51972122606923} is an apocalyptic number.

51972122606923 is a deficient number, since it is larger than the sum of its proper divisors (1).

51972122606923 is an equidigital number, since it uses as much as digits as its factorization.

51972122606923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 51972122606923 in words is "fifty-one trillion, nine hundred seventy-two billion, one hundred twenty-two million, six hundred six thousand, nine hundred twenty-three".