194254057872 has 240 divisors, whose sum is σ = 659252150400. Its totient is φ = 54590941440.

The previous prime is 194254057871. The next prime is 194254057889. The reversal of 194254057872 is 278750452491.

194254057872 is a `hidden beast` number, since 1 + 9 + 4 + 25 + 40 + 578 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (194254057871) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1216029 + ... + 1366467.

It is an arithmetic number, because the mean of its divisors is an integer number (2746883960).

Almost surely, 2^194254057872 is an apocalyptic number.

194254057872 is a gapful number since it is divisible by the number (12) 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 194254057872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329626075200).

194254057872 is an abundant number, since it is smaller than the sum of its proper divisors (464998092528).

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

194254057872 is a wasteful number, since it uses less digits than its factorization.

194254057872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150531 (or 150512 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

The spelling of 194254057872 in words is "one hundred ninety-four billion, two hundred fifty-four million, fifty-seven thousand, eight hundred seventy-two".