49789021317 has 8 divisors (see below), whose sum is σ = 75868984896. Its totient is φ = 28450869312.

The previous prime is 49789021309. The next prime is 49789021319. The reversal of 49789021317 is 71312098794.

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

It is not a de Polignac number, because 49789021317 - 2³ = 49789021309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49789021317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49789021319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1185452868 + ... + 1185452909.

It is an arithmetic number, because the mean of its divisors is an integer number (9483623112).

Almost surely, 2^49789021317 is an apocalyptic number.

It is an amenable number.

49789021317 is a deficient number, since it is larger than the sum of its proper divisors (26079963579).

49789021317 is a wasteful number, since it uses less digits than its factorization.

49789021317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370905787.

The product of its (nonzero) digits is 762048, while the sum is 51.

The spelling of 49789021317 in words is "forty-nine billion, seven hundred eighty-nine million, twenty-one thousand, three hundred seventeen".