19005724485 has 24 divisors (see below), whose sum is σ = 35938098144. Its totient is φ = 9214896480.

The previous prime is 19005724477. The next prime is 19005724511. The reversal of 19005724485 is 58442750091.

It is not a de Polignac number, because 19005724485 - 2³ = 19005724477 is a prime.

It is a super-3 number, since 3×19005724485³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 19005724485.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19197207 + ... + 19198196.

It is an arithmetic number, because the mean of its divisors is an integer number (1497420756).

Almost surely, 2^19005724485 is an apocalyptic number.

19005724485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19005724485 is a deficient number, since it is larger than the sum of its proper divisors (16932373659).

19005724485 is a wasteful number, since it uses less digits than its factorization.

19005724485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38395425 (or 38395422 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 19005724485 in words is "nineteen billion, five million, seven hundred twenty-four thousand, four hundred eighty-five".