194432473680 has 160 divisors (see below), whose sum is σ = 627692682240. Its totient is φ = 49731870720.

The previous prime is 194432473633. The next prime is 194432473681. The reversal of 194432473680 is 86374234491.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194432473681) 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, 725086 + ... + 956354.

It is an arithmetic number, because the mean of its divisors is an integer number (3923079264).

Almost surely, 2^194432473680 is an apocalyptic number.

194432473680 is a gapful number since it is divisible by the number (10) 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 194432473680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313846341120).

194432473680 is an abundant number, since it is smaller than the sum of its proper divisors (433260208560).

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

194432473680 is a wasteful number, since it uses less digits than its factorization.

194432473680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231429 (or 231423 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 51.

The spelling of 194432473680 in words is "one hundred ninety-four billion, four hundred thirty-two million, four hundred seventy-three thousand, six hundred eighty".