19775824159 has 48 divisors (see below), whose sum is σ = 25420720320. Its totient is φ = 15045488640.

The previous prime is 19775824153. The next prime is 19775824181. The reversal of 19775824159 is 95142857791.

It is not a de Polignac number, because 19775824159 - 2¹⁷ = 19775693087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19775824153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9501999 + ... + 9504079.

It is an arithmetic number, because the mean of its divisors is an integer number (529598340).

Almost surely, 2^19775824159 is an apocalyptic number.

19775824159 is a deficient number, since it is larger than the sum of its proper divisors (5644896161).

19775824159 is a wasteful number, since it uses less digits than its factorization.

19775824159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420 (or 2407 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 58.

The spelling of 19775824159 in words is "nineteen billion, seven hundred seventy-five million, eight hundred twenty-four thousand, one hundred fifty-nine".