50140816643 has 4 divisors (see below), whose sum is σ = 50265856488. Its totient is φ = 50015776800.

The previous prime is 50140816639. The next prime is 50140816657. The reversal of 50140816643 is 34661804105.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50140816643 - 2² = 50140816639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50140816597 and 50140816606.

It is not an unprimeable number, because it can be changed into a prime (50140816603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62519321 + ... + 62520122.

It is an arithmetic number, because the mean of its divisors is an integer number (12566464122).

Almost surely, 2^50140816643 is an apocalyptic number.

50140816643 is a deficient number, since it is larger than the sum of its proper divisors (125039845).

50140816643 is a wasteful number, since it uses less digits than its factorization.

50140816643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125039844.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 50140816643 in words is "fifty billion, one hundred forty million, eight hundred sixteen thousand, six hundred forty-three".