18793525947 has 16 divisors (see below), whose sum is σ = 28639668480. Its totient is φ = 10738439712.

The previous prime is 18793525853. The next prime is 18793525969. The reversal of 18793525947 is 74952539781.

It is a happy number.

It is not a de Polignac number, because 18793525947 - 2²⁷ = 18659308219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18793525547) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 609129 + ... + 639237.

It is an arithmetic number, because the mean of its divisors is an integer number (1789979280).

Almost surely, 2^18793525947 is an apocalyptic number.

18793525947 is a deficient number, since it is larger than the sum of its proper divisors (9846142533).

18793525947 is a wasteful number, since it uses less digits than its factorization.

18793525947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59842.

The product of its digits is 19051200, while the sum is 60.

The spelling of 18793525947 in words is "eighteen billion, seven hundred ninety-three million, five hundred twenty-five thousand, nine hundred forty-seven".