18646931102 has 8 divisors (see below), whose sum is σ = 27978885000. Its totient is φ = 9320636104.

The previous prime is 18646931101. The next prime is 18646931131. The reversal of 18646931102 is 20113964681.

18646931102 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18646931102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18646931101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1406477 + ... + 1419672.

It is an arithmetic number, because the mean of its divisors is an integer number (3497360625).

Almost surely, 2^18646931102 is an apocalyptic number.

18646931102 is a deficient number, since it is larger than the sum of its proper divisors (9331953898).

18646931102 is a wasteful number, since it uses less digits than its factorization.

18646931102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829450.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 18646931102 in words is "eighteen billion, six hundred forty-six million, nine hundred thirty-one thousand, one hundred two".