19941429463 has 2 divisors, whose sum is σ = 19941429464. Its totient is φ = 19941429462.

The previous prime is 19941429457. The next prime is 19941429493. The reversal of 19941429463 is 36492414991.

It is a weak prime.

It is an emirp because it is prime and its reverse (36492414991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19941429463 - 2⁹ = 19941428951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19941429463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19941429493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9970714731 + 9970714732.

It is an arithmetic number, because the mean of its divisors is an integer number (9970714732).

Almost surely, 2^19941429463 is an apocalyptic number.

19941429463 is a deficient number, since it is larger than the sum of its proper divisors (1).

19941429463 is an equidigital number, since it uses as much as digits as its factorization.

19941429463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 52.

The spelling of 19941429463 in words is "nineteen billion, nine hundred forty-one million, four hundred twenty-nine thousand, four hundred sixty-three".