19147536090805 has 16 divisors (see below), whose sum is σ = 23158740234240. Its totient is φ = 15196905666432.

The previous prime is 19147536090757. The next prime is 19147536090863. The reversal of 19147536090805 is 50809063574191.

It is a cyclic number.

It is not a de Polignac number, because 19147536090805 - 2¹⁵ = 19147536058037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19147536090805.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 19074352 + ... + 20053078.

It is an arithmetic number, because the mean of its divisors is an integer number (1447421264640).

Almost surely, 2^{19147536090805} is an apocalyptic number.

It is an amenable number.

19147536090805 is a deficient number, since it is larger than the sum of its proper divisors (4011204143435).

19147536090805 is a wasteful number, since it uses less digits than its factorization.

19147536090805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009668.

The product of its (nonzero) digits is 8164800, while the sum is 58.

The spelling of 19147536090805 in words is "nineteen trillion, one hundred forty-seven billion, five hundred thirty-six million, ninety thousand, eight hundred five".