51445314042347 has 2 divisors, whose sum is σ = 51445314042348. Its totient is φ = 51445314042346.

The previous prime is 51445314042313. The next prime is 51445314042431. The reversal of 51445314042347 is 74324041354415.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51445314042347 - 2²⁰ = 51445312993771 is a prime.

It is not a weakly prime, because it can be changed into another prime (51445314042307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25722657021173 + 25722657021174.

It is an arithmetic number, because the mean of its divisors is an integer number (25722657021174).

Almost surely, 2^{51445314042347} is an apocalyptic number.

51445314042347 is a deficient number, since it is larger than the sum of its proper divisors (1).

51445314042347 is an equidigital number, since it uses as much as digits as its factorization.

51445314042347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3225600, while the sum is 47.

The spelling of 51445314042347 in words is "fifty-one trillion, four hundred forty-five billion, three hundred fourteen million, forty-two thousand, three hundred forty-seven".