194386475850 has 192 divisors, whose sum is σ = 580612838400. Its totient is φ = 42044175360.

The previous prime is 194386475827. The next prime is 194386475863. The reversal of 194386475850 is 58574683491.

It is a happy number.

It is a super-2 number, since 2×194386475850² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18887506 + ... + 18897794.

It is an arithmetic number, because the mean of its divisors is an integer number (3024025200).

Almost surely, 2^194386475850 is an apocalyptic number.

194386475850 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 194386475850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290306419200).

194386475850 is an abundant number, since it is smaller than the sum of its proper divisors (386226362550).

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

194386475850 is a wasteful number, since it uses less digits than its factorization.

194386475850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11277 (or 11272 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 60.

The spelling of 194386475850 in words is "one hundred ninety-four billion, three hundred eighty-six million, four hundred seventy-five thousand, eight hundred fifty".