51630348443 has 2 divisors, whose sum is σ = 51630348444. Its totient is φ = 51630348442.

The previous prime is 51630348391. The next prime is 51630348493. The reversal of 51630348443 is 34484303615.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51630348443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51630348443.

It is not a weakly prime, because it can be changed into another prime (51630348493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25815174221 + 25815174222.

It is an arithmetic number, because the mean of its divisors is an integer number (25815174222).

Almost surely, 2^51630348443 is an apocalyptic number.

51630348443 is a deficient number, since it is larger than the sum of its proper divisors (1).

51630348443 is an equidigital number, since it uses as much as digits as its factorization.

51630348443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 51630348443 in words is "fifty-one billion, six hundred thirty million, three hundred forty-eight thousand, four hundred forty-three".