194279955984 has 135 divisors (see below), whose sum is σ = 568737728013. Its totient is φ = 61905545856.

The previous prime is 194279955937. The next prime is 194279955997. The reversal of 194279955984 is 489559972491.

The square root of 194279955984 is 440772.

It is a perfect power (a square), and thus also a powerful number.

194279955984 is a `hidden beast` number, since 1 + 9 + 4 + 27 + 9 + 9 + 5 + 598 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 38943075600 + 155336880384 = 197340^2 + 394128^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 121652274 + ... + 121653870.

Almost surely, 2^194279955984 is an apocalyptic number.

194279955984 is the 440772-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194279955984

194279955984 is an abundant number, since it is smaller than the sum of its proper divisors (374457772029).

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

194279955984 is an equidigital number, since it uses as much as digits as its factorization.

194279955984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3254 (or 1625 counting only the distinct ones).

The product of its digits is 293932800, while the sum is 72.

The spelling of 194279955984 in words is "one hundred ninety-four billion, two hundred seventy-nine million, nine hundred fifty-five thousand, nine hundred eighty-four".