193049019157 has 8 divisors (see below), whose sum is σ = 193746029472. Its totient is φ = 192352818000.

The previous prime is 193049019143. The next prime is 193049019161. The reversal of 193049019157 is 751910940391.

193049019157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-193049019157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 193049019157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193040019157) 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, 277782 + ... + 680632.

It is an arithmetic number, because the mean of its divisors is an integer number (24218253684).

Almost surely, 2^193049019157 is an apocalyptic number.

It is an amenable number.

193049019157 is a deficient number, since it is larger than the sum of its proper divisors (697010315).

193049019157 is a wasteful number, since it uses less digits than its factorization.

193049019157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404579.

The product of its (nonzero) digits is 306180, while the sum is 49.

The spelling of 193049019157 in words is "one hundred ninety-three billion, forty-nine million, nineteen thousand, one hundred fifty-seven".