18458751043 has 2 divisors, whose sum is σ = 18458751044. Its totient is φ = 18458751042.

The previous prime is 18458751037. The next prime is 18458751061. The reversal of 18458751043 is 34015785481.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18458751043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18458750984 and 18458751002.

It is not a weakly prime, because it can be changed into another prime (18458751023) 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 as a sum of consecutive naturals, namely, 9229375521 + 9229375522.

It is an arithmetic number, because the mean of its divisors is an integer number (9229375522).

Almost surely, 2^18458751043 is an apocalyptic number.

18458751043 is a deficient number, since it is larger than the sum of its proper divisors (1).

18458751043 is an equidigital number, since it uses as much as digits as its factorization.

18458751043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 18458751043 in words is "eighteen billion, four hundred fifty-eight million, seven hundred fifty-one thousand, forty-three".