188108920542 has 8 divisors (see below), whose sum is σ = 376217841096. Its totient is φ = 62702973512.

The previous prime is 188108920541. The next prime is 188108920547. The reversal of 188108920542 is 245029801881.

It is a sphenic number, since it is the product of 3 distinct primes.

188108920542 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 188108920491 and 188108920500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188108920541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15675743373 + ... + 15675743384.

It is an arithmetic number, because the mean of its divisors is an integer number (47027230137).

Almost surely, 2^188108920542 is an apocalyptic number.

188108920542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

188108920542 is a wasteful number, since it uses less digits than its factorization.

188108920542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31351486762.

The product of its (nonzero) digits is 368640, while the sum is 48.

The spelling of 188108920542 in words is "one hundred eighty-eight billion, one hundred eight million, nine hundred twenty thousand, five hundred forty-two".