194145426560 has 256 divisors, whose sum is σ = 483492240000. Its totient is φ = 74498113536.

The previous prime is 194145426557. The next prime is 194145426613. The reversal of 194145426560 is 65624541491.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 463354031 + ... + 463354449.

Almost surely, 2^194145426560 is an apocalyptic number.

194145426560 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 194145426560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241746120000).

194145426560 is an abundant number, since it is smaller than the sum of its proper divisors (289346813440).

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

194145426560 is a wasteful number, since it uses less digits than its factorization.

194145426560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743 (or 731 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 194145426560 in words is "one hundred ninety-four billion, one hundred forty-five million, four hundred twenty-six thousand, five hundred sixty".