19519622041 has 8 divisors (see below), whose sum is σ = 19666000224. Its totient is φ = 19373300640.

The previous prime is 19519621993. The next prime is 19519622069. The reversal of 19519622041 is 14022691591.

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 19519622041 - 2¹⁹ = 19519097753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19519621985 and 19519622003.

It is not an unprimeable number, because it can be changed into a prime (19519622141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 889386 + ... + 911068.

It is an arithmetic number, because the mean of its divisors is an integer number (2458250028).

Almost surely, 2^19519622041 is an apocalyptic number.

It is an amenable number.

19519622041 is a deficient number, since it is larger than the sum of its proper divisors (146378183).

19519622041 is a wasteful number, since it uses less digits than its factorization.

19519622041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28391.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 19519622041 in words is "nineteen billion, five hundred nineteen million, six hundred twenty-two thousand, forty-one".