191314422450 has 378 divisors, whose sum is σ = 559637819559. Its totient is φ = 48634447680.

The previous prime is 191314422433. The next prime is 191314422461. The reversal of 191314422450 is 54224413191.

191314422450 is a `hidden beast` number, since 19 + 131 + 44 + 22 + 450 = 666.

191314422450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 73381933881 + 117932488569 = 270891^2 + 343413^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=309285.

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 188 ways as a sum of consecutive naturals, for example, 2421701511 + ... + 2421701589.

Almost surely, 2^191314422450 is an apocalyptic number.

191314422450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 191314422450

191314422450 is an abundant number, since it is smaller than the sum of its proper divisors (368323397109).

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

191314422450 is an frugal number, since it uses more digits than its factorization.

191314422450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 191314422450 in words is "one hundred ninety-one billion, three hundred fourteen million, four hundred twenty-two thousand, four hundred fifty".