50985379971 has 12 divisors (see below), whose sum is σ = 73654286472. Its totient is φ = 33986220576.

The previous prime is 50985379957. The next prime is 50985379981. The reversal of 50985379971 is 17997358905.

50985379971 is a `hidden beast` number, since 5 + 0 + 9 + 8 + 537 + 9 + 97 + 1 = 666.

It is not a de Polignac number, because 50985379971 - 2²⁵ = 50951825539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50985379899 and 50985379908.

It is not an unprimeable number, because it can be changed into a prime (50985379981) 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, 254961 + ... + 408626.

It is an arithmetic number, because the mean of its divisors is an integer number (6137857206).

Almost surely, 2^50985379971 is an apocalyptic number.

50985379971 is a deficient number, since it is larger than the sum of its proper divisors (22668906501).

50985379971 is a wasteful number, since it uses less digits than its factorization.

50985379971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672130 (or 672127 counting only the distinct ones).

The product of its (nonzero) digits is 21432600, while the sum is 63.

It can be divided in two parts, 509853 and 79971, that added together give a square (589824 = 768²).

The spelling of 50985379971 in words is "fifty billion, nine hundred eighty-five million, three hundred seventy-nine thousand, nine hundred seventy-one".