50910693821 has 12 divisors (see below), whose sum is σ = 57525028128. Its totient is φ = 44951244624.

The previous prime is 50910693803. The next prime is 50910693851. The reversal of 50910693821 is 12839601905.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-50910693821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50910693851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6544955 + ... + 6552728.

It is an arithmetic number, because the mean of its divisors is an integer number (4793752344).

Almost surely, 2^50910693821 is an apocalyptic number.

It is an amenable number.

50910693821 is a deficient number, since it is larger than the sum of its proper divisors (6614334307).

50910693821 is a wasteful number, since it uses less digits than its factorization.

50910693821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13097732 (or 13097719 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 50910693821 in words is "fifty billion, nine hundred ten million, six hundred ninety-three thousand, eight hundred twenty-one".