50117671645 has 4 divisors (see below), whose sum is σ = 60141205980. Its totient is φ = 40094137312.

The previous prime is 50117671613. The next prime is 50117671651. The reversal of 50117671645 is 54617671105.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54617671105 = 5 ⋅10923534221.

It can be written as a sum of positive squares in 2 ways, for example, as 12795681924 + 37321989721 = 113118^2 + 193189^2 .

It is a cyclic number.

It is not a de Polignac number, because 50117671645 - 2⁵ = 50117671613 is a prime.

It is a super-2 number, since 2×50117671645² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5011767160 + ... + 5011767169.

It is an arithmetic number, because the mean of its divisors is an integer number (15035301495).

Almost surely, 2^50117671645 is an apocalyptic number.

It is an amenable number.

50117671645 is a deficient number, since it is larger than the sum of its proper divisors (10023534335).

50117671645 is a wasteful number, since it uses less digits than its factorization.

50117671645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10023534334.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 50117671645 in words is "fifty billion, one hundred seventeen million, six hundred seventy-one thousand, six hundred forty-five".