50657609172069 has 6 divisors (see below), whose sum is σ = 73172102137446. Its totient is φ = 33771739448040.

The previous prime is 50657609172047. The next prime is 50657609172097. The reversal of 50657609172069 is 96027190675605.

50657609172069 is a `hidden beast` number, since 5 + 0 + 6 + 5 + 7 + 609 + 17 + 2 + 0 + 6 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 49349753903844 + 1307855268225 = 7024938^2 + 1143615^2 .

It is not a de Polignac number, because 50657609172069 - 2⁹ = 50657609171557 is a prime.

It is a super-2 number, since 2×50657609172069² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50657609171997 and 50657609172015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50657609173069) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2814311620662 + ... + 2814311620679.

It is an arithmetic number, because the mean of its divisors is an integer number (12195350356241).

Almost surely, 2^{50657609172069} is an apocalyptic number.

It is an amenable number.

50657609172069 is a deficient number, since it is larger than the sum of its proper divisors (22514492965377).

50657609172069 is a wasteful number, since it uses less digits than its factorization.

50657609172069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5628623241347 (or 5628623241344 counting only the distinct ones).

The product of its (nonzero) digits is 42865200, while the sum is 63.

The spelling of 50657609172069 in words is "fifty trillion, six hundred fifty-seven billion, six hundred nine million, one hundred seventy-two thousand, sixty-nine".