50686602842 has 4 divisors (see below), whose sum is σ = 76029904266. Its totient is φ = 25343301420.

The previous prime is 50686602823. The next prime is 50686602847. The reversal of 50686602842 is 24820668605.

50686602842 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.

It can be written as a sum of positive squares in only one way, i.e., 41127434401 + 9559168441 = 202799^2 + 97771^2 .

It is not an unprimeable number, because it can be changed into a prime (50686602847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12671650709 + ... + 12671650712.

Almost surely, 2^50686602842 is an apocalyptic number.

50686602842 is a deficient number, since it is larger than the sum of its proper divisors (25343301424).

50686602842 is a wasteful number, since it uses less digits than its factorization.

50686602842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25343301423.

The product of its (nonzero) digits is 1105920, while the sum is 47.

The spelling of 50686602842 in words is "fifty billion, six hundred eighty-six million, six hundred two thousand, eight hundred forty-two".