191000018382000 has 160 divisors (see below), whose sum is σ = 619916841086400. Its totient is φ = 50591503513600.

The previous prime is 191000018381959. The next prime is 191000018382007. The reversal of 191000018382000 is 283810000191.

It is not an unprimeable number, because it can be changed into a prime (191000018382007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105929277 + ... + 107717276.

It is an arithmetic number, because the mean of its divisors is an integer number (3874480256790).

Almost surely, 2^{191000018382000} is an apocalyptic number.

191000018382000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

191000018382000 is an abundant number, since it is smaller than the sum of its proper divisors (428916822704400).

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

191000018382000 is a wasteful number, since it uses less digits than its factorization.

191000018382000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213646728 (or 213646712 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 33.

Adding to 191000018382000 its reverse (283810000191), we get a palindrome (191283828382191).

The spelling of 191000018382000 in words is "one hundred ninety-one trillion, eighteen million, three hundred eighty-two thousand".