50798640693 has 4 divisors (see below), whose sum is σ = 67731520928. Its totient is φ = 33865760460.

The previous prime is 50798640677. The next prime is 50798640703. The reversal of 50798640693 is 39604689705.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 50798640693 - 2⁴ = 50798640677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50798640623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8466440113 + ... + 8466440118.

It is an arithmetic number, because the mean of its divisors is an integer number (16932880232).

Almost surely, 2^50798640693 is an apocalyptic number.

It is an amenable number.

50798640693 is a deficient number, since it is larger than the sum of its proper divisors (16932880235).

50798640693 is a wasteful number, since it uses less digits than its factorization.

50798640693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16932880234.

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 50798640693 in words is "fifty billion, seven hundred ninety-eight million, six hundred forty thousand, six hundred ninety-three".