194294738448 has 160 divisors (see below), whose sum is σ = 576502625280. Its totient is φ = 62587054080.

The previous prime is 194294738447. The next prime is 194294738453. The reversal of 194294738448 is 844837492491.

194294738448 is a `hidden beast` number, since 1 + 9 + 42 + 9 + 473 + 84 + 48 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (194294738447) 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, 9806440 + ... + 9826232.

It is an arithmetic number, because the mean of its divisors is an integer number (3603141408).

Almost surely, 2^194294738448 is an apocalyptic number.

194294738448 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 194294738448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288251312640).

194294738448 is an abundant number, since it is smaller than the sum of its proper divisors (382207886832).

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

194294738448 is a wasteful number, since it uses less digits than its factorization.

194294738448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20574 (or 20562 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The spelling of 194294738448 in words is "one hundred ninety-four billion, two hundred ninety-four million, seven hundred thirty-eight thousand, four hundred forty-eight".