18190920102 has 32 divisors (see below), whose sum is σ = 36568392192. Its totient is φ = 6032624544.

The previous prime is 18190920073. The next prime is 18190920107. The reversal of 18190920102 is 20102909181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18190920107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 985603 + ... + 1003889.

It is an arithmetic number, because the mean of its divisors is an integer number (1142762256).

Almost surely, 2^18190920102 is an apocalyptic number.

18190920102 is an abundant number, since it is smaller than the sum of its proper divisors (18377472090).

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

18190920102 is a wasteful number, since it uses less digits than its factorization.

18190920102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19132.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 18190920102 in words is "eighteen billion, one hundred ninety million, nine hundred twenty thousand, one hundred two".