19214917977803 has 2 divisors, whose sum is σ = 19214917977804. Its totient is φ = 19214917977802.

The previous prime is 19214917977799. The next prime is 19214917977809. The reversal of 19214917977803 is 30877971941291.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19214917977803 - 2² = 19214917977799 is a prime.

It is not a weakly prime, because it can be changed into another prime (19214917977809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9607458988901 + 9607458988902.

It is an arithmetic number, because the mean of its divisors is an integer number (9607458988902).

Almost surely, 2^{19214917977803} is an apocalyptic number.

19214917977803 is a deficient number, since it is larger than the sum of its proper divisors (1).

19214917977803 is an equidigital number, since it uses as much as digits as its factorization.

19214917977803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48009024, while the sum is 68.

The spelling of 19214917977803 in words is "nineteen trillion, two hundred fourteen billion, nine hundred seventeen million, nine hundred seventy-seven thousand, eight hundred three".