19341807545 has 32 divisors (see below), whose sum is σ = 25287668640. Its totient is φ = 14146662400.

The previous prime is 19341807539. The next prime is 19341807557. The reversal of 19341807545 is 54570814391.

It can be written as a sum of positive squares in 16 ways, for example, as 2625127696 + 16716679849 = 51236^2 + 129293^2 .

It is not a de Polignac number, because 19341807545 - 2⁶ = 19341807481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19341807545.

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 31 ways as a sum of consecutive naturals, for example, 433751 + ... + 476259.

It is an arithmetic number, because the mean of its divisors is an integer number (790239645).

Almost surely, 2^19341807545 is an apocalyptic number.

It is an amenable number.

19341807545 is a deficient number, since it is larger than the sum of its proper divisors (5945861095).

19341807545 is a wasteful number, since it uses less digits than its factorization.

19341807545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42685.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 19341807545 in words is "nineteen billion, three hundred forty-one million, eight hundred seven thousand, five hundred forty-five".