18201910009102 has 4 divisors (see below), whose sum is σ = 27302865013656. Its totient is φ = 9100955004550.

The previous prime is 18201910009093. The next prime is 18201910009139. The reversal of 18201910009102 is 20190001910281.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4550477502274 + ... + 4550477502277.

It is an arithmetic number, because the mean of its divisors is an integer number (6825716253414).

Almost surely, 2^{18201910009102} is an apocalyptic number.

18201910009102 is a deficient number, since it is larger than the sum of its proper divisors (9100955004554).

18201910009102 is an equidigital number, since it uses as much as digits as its factorization.

18201910009102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9100955004553.

The product of its (nonzero) digits is 2592, while the sum is 34.

Adding to 18201910009102 its reverse (20190001910281), we get a palindrome (38391911919383).

The spelling of 18201910009102 in words is "eighteen trillion, two hundred one billion, nine hundred ten million, nine thousand, one hundred two".