19941429443 has 8 divisors (see below), whose sum is σ = 21491685600. Its totient is φ = 18393501888.

The previous prime is 19941429349. The next prime is 19941429457. The reversal of 19941429443 is 34492414991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19941429443 - 2²² = 19937235139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19941429391 and 19941429400.

It is not an unprimeable number, because it can be changed into a prime (19941429463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564338 + ... + 598631.

It is an arithmetic number, because the mean of its divisors is an integer number (2686460700).

Almost surely, 2^19941429443 is an apocalyptic number.

19941429443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

19941429443 is a deficient number, since it is larger than the sum of its proper divisors (1550256157).

19941429443 is a wasteful number, since it uses less digits than its factorization.

19941429443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164301.

The product of its digits is 1119744, while the sum is 50.

The spelling of 19941429443 in words is "nineteen billion, nine hundred forty-one million, four hundred twenty-nine thousand, four hundred forty-three".