18386426038 has 8 divisors (see below), whose sum is σ = 28166440032. Its totient is φ = 8997612696.

The previous prime is 18386426011. The next prime is 18386426063. The reversal of 18386426038 is 83062468381.

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 = 18386425982 and 18386426000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97800045 + ... + 97800232.

It is an arithmetic number, because the mean of its divisors is an integer number (3520805004).

Almost surely, 2^18386426038 is an apocalyptic number.

18386426038 is a deficient number, since it is larger than the sum of its proper divisors (9780013994).

18386426038 is a wasteful number, since it uses less digits than its factorization.

18386426038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195600326.

The product of its (nonzero) digits is 1327104, while the sum is 49.

It can be divided in two parts, 183864 and 26038, that added together give a palindrome (209902).

The spelling of 18386426038 in words is "eighteen billion, three hundred eighty-six million, four hundred twenty-six thousand, thirty-eight".