193072172983 has 2 divisors, whose sum is σ = 193072172984. Its totient is φ = 193072172982.

The previous prime is 193072172977. The next prime is 193072173001. The reversal of 193072172983 is 389271270391.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-193072172983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 193072172983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193072172903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96536086491 + 96536086492.

It is an arithmetic number, because the mean of its divisors is an integer number (96536086492).

Almost surely, 2^193072172983 is an apocalyptic number.

193072172983 is a deficient number, since it is larger than the sum of its proper divisors (1).

193072172983 is an equidigital number, since it uses as much as digits as its factorization.

193072172983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 193072172983 in words is "one hundred ninety-three billion, seventy-two million, one hundred seventy-two thousand, nine hundred eighty-three".