18816750043 has 48 divisors (see below), whose sum is σ = 24224024160. Its totient is φ = 14478912000.

The previous prime is 18816750019. The next prime is 18816750049. The reversal of 18816750043 is 34005761881.

It is not a de Polignac number, because 18816750043 - 2¹⁷ = 18816618971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18816750049) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9897393 + ... + 9899293.

It is an arithmetic number, because the mean of its divisors is an integer number (504667170).

Almost surely, 2^18816750043 is an apocalyptic number.

18816750043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

18816750043 is a deficient number, since it is larger than the sum of its proper divisors (5407274117).

18816750043 is a wasteful number, since it uses less digits than its factorization.

18816750043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348 (or 2341 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 18816750043 in words is "eighteen billion, eight hundred sixteen million, seven hundred fifty thousand, forty-three".