19029408345 has 12 divisors (see below), whose sum is σ = 32984307876. Its totient is φ = 10149017760.

The previous prime is 19029408341. The next prime is 19029408421. The reversal of 19029408345 is 54380492091.

19029408345 is a `hidden beast` number, since 19 + 0 + 294 + 0 + 8 + 345 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5032625481 + 13996782864 = 70941^2 + 118308^2 .

It is not a de Polignac number, because 19029408345 - 2² = 19029408341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 422875741 = 19029408345 / (1 + 9 + 0 + 2 + 9 + 4 + 0 + 8 + 3 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 19029408345.

It is not an unprimeable number, because it can be changed into a prime (19029408341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211437826 + ... + 211437915.

It is an arithmetic number, because the mean of its divisors is an integer number (2748692323).

Almost surely, 2^19029408345 is an apocalyptic number.

19029408345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19029408345 is a deficient number, since it is larger than the sum of its proper divisors (13954899531).

19029408345 is a wasteful number, since it uses less digits than its factorization.

19029408345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422875752 (or 422875749 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 19029408345 in words is "nineteen billion, twenty-nine million, four hundred eight thousand, three hundred forty-five".