1421568194899 has 2 divisors, whose sum is σ = 1421568194900. Its totient is φ = 1421568194898.

The previous prime is 1421568194843. The next prime is 1421568194933. The reversal of 1421568194899 is 9984918651241.

It is a strong prime.

It is an emirp because it is prime and its reverse (9984918651241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421568194899 is a prime.

It is a super-2 number, since 2×1421568194899² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1421568192899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710784097449 + 710784097450.

It is an arithmetic number, because the mean of its divisors is an integer number (710784097450).

Almost surely, 2^{1421568194899} is an apocalyptic number.

1421568194899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421568194899 is an equidigital number, since it uses as much as digits as its factorization.

1421568194899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44789760, while the sum is 67.

The spelling of 1421568194899 in words is "one trillion, four hundred twenty-one billion, five hundred sixty-eight million, one hundred ninety-four thousand, eight hundred ninety-nine".