51211212467 has 2 divisors, whose sum is σ = 51211212468. Its totient is φ = 51211212466.

The previous prime is 51211212427. The next prime is 51211212499. The reversal of 51211212467 is 76421211215.

It is an a-pointer prime, because the next prime (51211212499) can be obtained adding 51211212467 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51211212467 - 2³² = 46916245171 is a prime.

It is not a weakly prime, because it can be changed into another prime (51211212427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25605606233 + 25605606234.

It is an arithmetic number, because the mean of its divisors is an integer number (25605606234).

Almost surely, 2^51211212467 is an apocalyptic number.

51211212467 is a deficient number, since it is larger than the sum of its proper divisors (1).

51211212467 is an equidigital number, since it uses as much as digits as its factorization.

51211212467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 32.

The spelling of 51211212467 in words is "fifty-one billion, two hundred eleven million, two hundred twelve thousand, four hundred sixty-seven".