50640686020137 has 4 divisors (see below), whose sum is σ = 67520914693520. Its totient is φ = 33760457346756.

The previous prime is 50640686020081. The next prime is 50640686020147. The reversal of 50640686020137 is 73102068604605.

50640686020137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 50640686020137 - 2¹⁴ = 50640686003753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50640686020147) 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, 8440114336687 + ... + 8440114336692.

It is an arithmetic number, because the mean of its divisors is an integer number (16880228673380).

Almost surely, 2^{50640686020137} is an apocalyptic number.

It is an amenable number.

50640686020137 is a deficient number, since it is larger than the sum of its proper divisors (16880228673383).

50640686020137 is a wasteful number, since it uses less digits than its factorization.

50640686020137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16880228673382.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 50640686020137 in words is "fifty trillion, six hundred forty billion, six hundred eighty-six million, twenty thousand, one hundred thirty-seven".