188009462140 has 24 divisors (see below), whose sum is σ = 394879176720. Its totient is φ = 75192488448.

The previous prime is 188009462099. The next prime is 188009462141. The reversal of 188009462140 is 41264900881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188009462141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568902 + ... + 836461.

It is an arithmetic number, because the mean of its divisors is an integer number (16453299030).

Almost surely, 2^188009462140 is an apocalyptic number.

188009462140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188009462140 is an abundant number, since it is smaller than the sum of its proper divisors (206869714580).

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

188009462140 is a wasteful number, since it uses less digits than its factorization.

188009462140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412061 (or 1412059 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 188009462140 in words is "one hundred eighty-eight billion, nine million, four hundred sixty-two thousand, one hundred forty".