50911995386 has 72 divisors (see below), whose sum is σ = 94796982720. Its totient is φ = 20442882432.

The previous prime is 50911995373. The next prime is 50911995389. The reversal of 50911995386 is 68359911905.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50911995389) 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 35 ways as a sum of consecutive naturals, for example, 6425135 + ... + 6433053.

It is an arithmetic number, because the mean of its divisors is an integer number (1316624760).

Almost surely, 2^50911995386 is an apocalyptic number.

50911995386 is a deficient number, since it is larger than the sum of its proper divisors (43884987334).

50911995386 is a wasteful number, since it uses less digits than its factorization.

50911995386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8196 (or 8172 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 56.

The spelling of 50911995386 in words is "fifty billion, nine hundred eleven million, nine hundred ninety-five thousand, three hundred eighty-six".