51216663143467 has 2 divisors, whose sum is σ = 51216663143468. Its totient is φ = 51216663143466.

The previous prime is 51216663143453. The next prime is 51216663143501. The reversal of 51216663143467 is 76434136661215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51216663143467 - 2⁷ = 51216663143339 is a prime.

It is not a weakly prime, because it can be changed into another prime (51216663143267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25608331571733 + 25608331571734.

It is an arithmetic number, because the mean of its divisors is an integer number (25608331571734).

Almost surely, 2^{51216663143467} is an apocalyptic number.

51216663143467 is a deficient number, since it is larger than the sum of its proper divisors (1).

51216663143467 is an equidigital number, since it uses as much as digits as its factorization.

51216663143467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13063680, while the sum is 55.

The spelling of 51216663143467 in words is "fifty-one trillion, two hundred sixteen billion, six hundred sixty-three million, one hundred forty-three thousand, four hundred sixty-seven".