51738745147 has 2 divisors, whose sum is σ = 51738745148. Its totient is φ = 51738745146.

The previous prime is 51738745141. The next prime is 51738745171. The reversal of 51738745147 is 74154783715.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51738745147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51738745094 and 51738745103.

It is not a weakly prime, because it can be changed into another prime (51738745141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25869372573 + 25869372574.

It is an arithmetic number, because the mean of its divisors is an integer number (25869372574).

Almost surely, 2^51738745147 is an apocalyptic number.

51738745147 is a deficient number, since it is larger than the sum of its proper divisors (1).

51738745147 is an equidigital number, since it uses as much as digits as its factorization.

51738745147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3292800, while the sum is 52.

The spelling of 51738745147 in words is "fifty-one billion, seven hundred thirty-eight million, seven hundred forty-five thousand, one hundred forty-seven".