18106905400 has 48 divisors (see below), whose sum is σ = 42675282000. Its totient is φ = 7143540480.

The previous prime is 18106905353. The next prime is 18106905403. The reversal of 18106905400 is 450960181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18106905403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 605500 + ... + 634699.

It is an arithmetic number, because the mean of its divisors is an integer number (889068375).

Almost surely, 2^18106905400 is an apocalyptic number.

18106905400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18106905400 is an abundant number, since it is smaller than the sum of its proper divisors (24568376600).

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

18106905400 is a wasteful number, since it uses less digits than its factorization.

18106905400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240288 (or 1240279 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 18106905400 in words is "eighteen billion, one hundred six million, nine hundred five thousand, four hundred".