194751648 has 192 divisors, whose sum is σ = 699390720. Its totient is φ = 51342336.

The previous prime is 194751629. The next prime is 194751671. The reversal of 194751648 is 846157491.

194751648 is a `hidden beast` number, since 1 + 94 + 7 + 516 + 48 = 666.

194751648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77386 + ... + 79862.

It is an arithmetic number, because the mean of its divisors is an integer number (3642660).

Almost surely, 2^194751648 is an apocalyptic number.

194751648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194751648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349695360).

194751648 is an abundant number, since it is smaller than the sum of its proper divisors (504639072).

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

194751648 is a wasteful number, since it uses less digits than its factorization.

194751648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2516 (or 2502 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 194751648 is about 13955.3447825555. The cubic root of 194751648 is about 579.6427129683.

The spelling of 194751648 in words is "one hundred ninety-four million, seven hundred fifty-one thousand, six hundred forty-eight".