51195396067 has 2 divisors, whose sum is σ = 51195396068. Its totient is φ = 51195396066.

The previous prime is 51195396053. The next prime is 51195396157. The reversal of 51195396067 is 76069359115.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51195396067 is a prime.

It is not a weakly prime, because it can be changed into another prime (51195396017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25597698033 + 25597698034.

It is an arithmetic number, because the mean of its divisors is an integer number (25597698034).

Almost surely, 2^51195396067 is an apocalyptic number.

51195396067 is a deficient number, since it is larger than the sum of its proper divisors (1).

51195396067 is an equidigital number, since it uses as much as digits as its factorization.

51195396067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1530900, while the sum is 52.

The spelling of 51195396067 in words is "fifty-one billion, one hundred ninety-five million, three hundred ninety-six thousand, sixty-seven".