191970009150 has 48 divisors (see below), whose sum is σ = 477114057984. Its totient is φ = 51081418080.

The previous prime is 191970009097. The next prime is 191970009163. The reversal of 191970009150 is 51900079191.

It is a happy number.

191970009150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1312624 + ... + 1451523.

It is an arithmetic number, because the mean of its divisors is an integer number (9939876208).

Almost surely, 2^191970009150 is an apocalyptic number.

191970009150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

191970009150 is an abundant number, since it is smaller than the sum of its proper divisors (285144048834).

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

191970009150 is a wasteful number, since it uses less digits than its factorization.

191970009150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764625 (or 2764620 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 42.

The spelling of 191970009150 in words is "one hundred ninety-one billion, nine hundred seventy million, nine thousand, one hundred fifty".