193394978332 has 24 divisors (see below), whose sum is σ = 359479998864. Its totient is φ = 90722295552.

The previous prime is 193394978303. The next prime is 193394978377. The reversal of 193394978332 is 233879493391.

193394978332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 4464318 + ... + 4507429.

It is an arithmetic number, because the mean of its divisors is an integer number (14978333286).

Almost surely, 2^193394978332 is an apocalyptic number.

It is an amenable number.

193394978332 is a deficient number, since it is larger than the sum of its proper divisors (166085020532).

193394978332 is a wasteful number, since it uses less digits than its factorization.

193394978332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8972085 (or 8972083 counting only the distinct ones).

The product of its digits is 26453952, while the sum is 61.

The spelling of 193394978332 in words is "one hundred ninety-three billion, three hundred ninety-four million, nine hundred seventy-eight thousand, three hundred thirty-two".