51445314042431 has 2 divisors, whose sum is σ = 51445314042432. Its totient is φ = 51445314042430.

The previous prime is 51445314042347. The next prime is 51445314042449. The reversal of 51445314042431 is 13424041354415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51445314042431 - 2¹⁴ = 51445314026047 is a prime.

It is a super-2 number, since 2×51445314042431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51445314045431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25722657021215 + 25722657021216.

It is an arithmetic number, because the mean of its divisors is an integer number (25722657021216).

Almost surely, 2^{51445314042431} is an apocalyptic number.

51445314042431 is a deficient number, since it is larger than the sum of its proper divisors (1).

51445314042431 is an equidigital number, since it uses as much as digits as its factorization.

51445314042431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 460800, while the sum is 41.

Adding to 51445314042431 its reverse (13424041354415), we get a palindrome (64869355396846).

The spelling of 51445314042431 in words is "fifty-one trillion, four hundred forty-five billion, three hundred fourteen million, forty-two thousand, four hundred thirty-one".