18896148489 has 32 divisors (see below), whose sum is σ = 27155566080. Its totient is φ = 11651980032.

The previous prime is 18896148473. The next prime is 18896148497. The reversal of 18896148489 is 98484169881.

It is not a de Polignac number, because 18896148489 - 2⁴ = 18896148473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18896148419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 409654 + ... + 453440.

It is an arithmetic number, because the mean of its divisors is an integer number (848611440).

Almost surely, 2^18896148489 is an apocalyptic number.

18896148489 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

18896148489 is a deficient number, since it is larger than the sum of its proper divisors (8259417591).

18896148489 is a wasteful number, since it uses less digits than its factorization.

18896148489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43989.

The product of its digits is 31850496, while the sum is 66.

The spelling of 18896148489 in words is "eighteen billion, eight hundred ninety-six million, one hundred forty-eight thousand, four hundred eighty-nine".