193239988973 has 8 divisors (see below), whose sum is σ = 201741254208. Its totient is φ = 184747017664.

The previous prime is 193239988951. The next prime is 193239988987. The reversal of 193239988973 is 379889932391.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 193239988973 - 2⁸ = 193239988717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 193239988897 and 193239988906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193239588973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2025836 + ... + 2119077.

It is an arithmetic number, because the mean of its divisors is an integer number (25217656776).

Almost surely, 2^193239988973 is an apocalyptic number.

It is an amenable number.

193239988973 is a deficient number, since it is larger than the sum of its proper divisors (8501265235).

193239988973 is a wasteful number, since it uses less digits than its factorization.

193239988973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4146963.

The product of its digits is 158723712, while the sum is 71.

The spelling of 193239988973 in words is "one hundred ninety-three billion, two hundred thirty-nine million, nine hundred eighty-eight thousand, nine hundred seventy-three".