18628334742 has 32 divisors (see below), whose sum is σ = 37970311680. Its totient is φ = 6090570720.

The previous prime is 18628334737. The next prime is 18628334761. The reversal of 18628334742 is 24743382681.

It is a junction number, because it is equal to n+sod(n) for n = 18628334691 and 18628334700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1641267 + ... + 1652577.

It is an arithmetic number, because the mean of its divisors is an integer number (1186572240).

Almost surely, 2^18628334742 is an apocalyptic number.

18628334742 is an abundant number, since it is smaller than the sum of its proper divisors (19341976938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18628334742 is a wasteful number, since it uses less digits than its factorization.

18628334742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16548.

The product of its digits is 1548288, while the sum is 48.

The spelling of 18628334742 in words is "eighteen billion, six hundred twenty-eight million, three hundred thirty-four thousand, seven hundred forty-two".