18458673854 has 8 divisors (see below), whose sum is σ = 27690974928. Its totient is φ = 9228348880.

The previous prime is 18458673853. The next prime is 18458673859. The reversal of 18458673854 is 45837685481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 18458673793 and 18458673802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18458673853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470447 + ... + 508170.

It is an arithmetic number, because the mean of its divisors is an integer number (3461371866).

Almost surely, 2^18458673854 is an apocalyptic number.

18458673854 is a deficient number, since it is larger than the sum of its proper divisors (9232301074).

18458673854 is an equidigital number, since it uses as much as digits as its factorization.

18458673854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988050.

The product of its digits is 25804800, while the sum is 59.

The spelling of 18458673854 in words is "eighteen billion, four hundred fifty-eight million, six hundred seventy-three thousand, eight hundred fifty-four".