50619644986 has 4 divisors (see below), whose sum is σ = 75929467482. Its totient is φ = 25309822492.

The previous prime is 50619644953. The next prime is 50619644993. The reversal of 50619644986 is 68944691605.

It is a happy number.

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., 50618250225 + 1394761 = 224985^2 + 1181^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 50619644986.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12654911245 + ... + 12654911248.

Almost surely, 2^50619644986 is an apocalyptic number.

50619644986 is a deficient number, since it is larger than the sum of its proper divisors (25309822496).

50619644986 is a wasteful number, since it uses less digits than its factorization.

50619644986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25309822495.

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 50619644986 in words is "fifty billion, six hundred nineteen million, six hundred forty-four thousand, nine hundred eighty-six".