51766174147 has 2 divisors, whose sum is σ = 51766174148. Its totient is φ = 51766174146.

The previous prime is 51766174111. The next prime is 51766174157. The reversal of 51766174147 is 74147166715.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51766174147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51766174147.

It is not a weakly prime, because it can be changed into another prime (51766174157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25883087073 + 25883087074.

It is an arithmetic number, because the mean of its divisors is an integer number (25883087074).

Almost surely, 2^51766174147 is an apocalyptic number.

51766174147 is a deficient number, since it is larger than the sum of its proper divisors (1).

51766174147 is an equidigital number, since it uses as much as digits as its factorization.

51766174147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 987840, while the sum is 49.

The spelling of 51766174147 in words is "fifty-one billion, seven hundred sixty-six million, one hundred seventy-four thousand, one hundred forty-seven".