51911202463 has 2 divisors, whose sum is σ = 51911202464. Its totient is φ = 51911202462.

The previous prime is 51911202439. The next prime is 51911202493. The reversal of 51911202463 is 36420211915.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51911202463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51911202493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25955601231 + 25955601232.

It is an arithmetic number, because the mean of its divisors is an integer number (25955601232).

Almost surely, 2^51911202463 is an apocalyptic number.

51911202463 is a deficient number, since it is larger than the sum of its proper divisors (1).

51911202463 is an equidigital number, since it uses as much as digits as its factorization.

51911202463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 51911202463 in words is "fifty-one billion, nine hundred eleven million, two hundred two thousand, four hundred sixty-three".