51443622634387 has 2 divisors, whose sum is σ = 51443622634388. Its totient is φ = 51443622634386.

The previous prime is 51443622634319. The next prime is 51443622634421. The reversal of 51443622634387 is 78343622634415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51443622634387 - 2¹⁵ = 51443622601619 is a prime.

It is not a weakly prime, because it can be changed into another prime (51443622634087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25721811317193 + 25721811317194.

It is an arithmetic number, because the mean of its divisors is an integer number (25721811317194).

Almost surely, 2^{51443622634387} is an apocalyptic number.

51443622634387 is a deficient number, since it is larger than the sum of its proper divisors (1).

51443622634387 is an equidigital number, since it uses as much as digits as its factorization.

51443622634387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69672960, while the sum is 58.

The spelling of 51443622634387 in words is "fifty-one trillion, four hundred forty-three billion, six hundred twenty-two million, six hundred thirty-four thousand, three hundred eighty-seven".