194349440280 has 32 divisors (see below), whose sum is σ = 583048321200. Its totient is φ = 51826517376.

The previous prime is 194349440251. The next prime is 194349440281. The reversal of 194349440280 is 82044943491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194349440281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809789215 + ... + 809789454.

Almost surely, 2^194349440280 is an apocalyptic number.

194349440280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194349440280 is an abundant number, since it is smaller than the sum of its proper divisors (388698880920).

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

194349440280 is a wasteful number, since it uses less digits than its factorization.

194349440280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619578683 (or 1619578679 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 194349440280 in words is "one hundred ninety-four billion, three hundred forty-nine million, four hundred forty thousand, two hundred eighty".