50426820866 has 8 divisors (see below), whose sum is σ = 75644554764. Its totient is φ = 25211969280.

The previous prime is 50426820863. The next prime is 50426820869. The reversal of 50426820866 is 66802862405.

50426820866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (50426820863) and next prime (50426820869).

It can be written as a sum of positive squares in 2 ways, for example, as 41994255625 + 8432565241 = 204925^2 + 91829^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 50426820866.

It is not an unprimeable number, because it can be changed into a prime (50426820863) 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, 676295 + ... + 747146.

Almost surely, 2^50426820866 is an apocalyptic number.

50426820866 is a deficient number, since it is larger than the sum of its proper divisors (25217733898).

50426820866 is a wasteful number, since it uses less digits than its factorization.

50426820866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441156.

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

The spelling of 50426820866 in words is "fifty billion, four hundred twenty-six million, eight hundred twenty thousand, eight hundred sixty-six".