188009298492 has 48 divisors (see below), whose sum is σ = 446555692800. Its totient is φ = 61555190400.

The previous prime is 188009298443. The next prime is 188009298497. The reversal of 188009298492 is 294892900881.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188009298497) 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, 421642 + ... + 744177.

It is an arithmetic number, because the mean of its divisors is an integer number (9303243600).

Almost surely, 2^188009298492 is an apocalyptic number.

188009298492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

188009298492 is an abundant number, since it is smaller than the sum of its proper divisors (258546394308).

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

188009298492 is a wasteful number, since it uses less digits than its factorization.

188009298492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166066 (or 1166064 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 60.

The spelling of 188009298492 in words is "one hundred eighty-eight billion, nine million, two hundred ninety-eight thousand, four hundred ninety-two".