192138214990 has 8 divisors (see below), whose sum is σ = 345848787000. Its totient is φ = 76855285992.

The previous prime is 192138214943. The next prime is 192138214991. The reversal of 192138214990 is 99412831291.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192138214991) 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, 9606910740 + ... + 9606910759.

It is an arithmetic number, because the mean of its divisors is an integer number (43231098375).

Almost surely, 2^192138214990 is an apocalyptic number.

192138214990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

192138214990 is a deficient number, since it is larger than the sum of its proper divisors (153710572010).

192138214990 is a wasteful number, since it uses less digits than its factorization.

192138214990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19213821506.

The product of its (nonzero) digits is 279936, while the sum is 49.

The spelling of 192138214990 in words is "one hundred ninety-two billion, one hundred thirty-eight million, two hundred fourteen thousand, nine hundred ninety".