51634923227 has 2 divisors, whose sum is σ = 51634923228. Its totient is φ = 51634923226.

The previous prime is 51634923161. The next prime is 51634923281. The reversal of 51634923227 is 72232943615.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51634923227 is a prime.

It is not a weakly prime, because it can be changed into another prime (51634923287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25817461613 + 25817461614.

It is an arithmetic number, because the mean of its divisors is an integer number (25817461614).

Almost surely, 2^51634923227 is an apocalyptic number.

51634923227 is a deficient number, since it is larger than the sum of its proper divisors (1).

51634923227 is an equidigital number, since it uses as much as digits as its factorization.

51634923227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 44.

The spelling of 51634923227 in words is "fifty-one billion, six hundred thirty-four million, nine hundred twenty-three thousand, two hundred twenty-seven".