193994073040 has 40 divisors (see below), whose sum is σ = 455251531680. Its totient is φ = 76872414336.

The previous prime is 193994073023. The next prime is 193994073047. The reversal of 193994073040 is 40370499391.

193994073040 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193994073047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11322870 + ... + 11339989.

It is an arithmetic number, because the mean of its divisors is an integer number (11381288292).

Almost surely, 2^193994073040 is an apocalyptic number.

193994073040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

193994073040 is an abundant number, since it is smaller than the sum of its proper divisors (261257458640).

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

193994073040 is a wasteful number, since it uses less digits than its factorization.

193994073040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22662979 (or 22662973 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 49.

The spelling of 193994073040 in words is "one hundred ninety-three billion, nine hundred ninety-four million, seventy-three thousand, forty".