18625803046 has 4 divisors (see below), whose sum is σ = 27938704572. Its totient is φ = 9312901522.

The previous prime is 18625803019. The next prime is 18625803047. The reversal of 18625803046 is 64030852681.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64030852681 = 198589 ⋅322429.

It is a junction number, because it is equal to n+sod(n) for n = 18625802993 and 18625803011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18625803047) 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 as a sum of consecutive naturals, namely, 4656450760 + ... + 4656450763.

It is an arithmetic number, because the mean of its divisors is an integer number (6984676143).

Almost surely, 2^18625803046 is an apocalyptic number.

18625803046 is a deficient number, since it is larger than the sum of its proper divisors (9312901526).

18625803046 is an equidigital number, since it uses as much as digits as its factorization.

18625803046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9312901525.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 18625803046 in words is "eighteen billion, six hundred twenty-five million, eight hundred three thousand, forty-six".