50639797930 has 8 divisors (see below), whose sum is σ = 91151636292. Its totient is φ = 20255919168.

The previous prime is 50639797913. The next prime is 50639797987. The reversal of 50639797930 is 3979793605.

It can be written as a sum of positive squares in 2 ways, for example, as 42674056929 + 7965741001 = 206577^2 + 89251^2 .

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

It is an unprimeable number.

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, 2531989887 + ... + 2531989906.

Almost surely, 2^50639797930 is an apocalyptic number.

50639797930 is a deficient number, since it is larger than the sum of its proper divisors (40511838362).

50639797930 is a wasteful number, since it uses less digits than its factorization.

50639797930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063979800.

The product of its (nonzero) digits is 9644670, while the sum is 58.

The spelling of 50639797930 in words is "fifty billion, six hundred thirty-nine million, seven hundred ninety-seven thousand, nine hundred thirty".