1421751678467 has 2 divisors, whose sum is σ = 1421751678468. Its totient is φ = 1421751678466.

The previous prime is 1421751678461. The next prime is 1421751678481. The reversal of 1421751678467 is 7648761571241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1421751678467 - 2¹⁰ = 1421751677443 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421751678461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710875839233 + 710875839234.

It is an arithmetic number, because the mean of its divisors is an integer number (710875839234).

Almost surely, 2^{1421751678467} is an apocalyptic number.

1421751678467 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421751678467 is an equidigital number, since it uses as much as digits as its factorization.

1421751678467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15805440, while the sum is 59.

The spelling of 1421751678467 in words is "one trillion, four hundred twenty-one billion, seven hundred fifty-one million, six hundred seventy-eight thousand, four hundred sixty-seven".