2050171850690 has 8 divisors (see below), whose sum is σ = 3690309331260. Its totient is φ = 820068740272.

The previous prime is 2050171850659. The next prime is 2050171850707. The reversal of 2050171850690 is 960581710502.

It can be written as a sum of positive squares in 2 ways, for example, as 1884269599969 + 165902250721 = 1372687^2 + 407311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2050171850690² (a number of 25 digits) contains 22 as substring.

It is a Curzon 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, 102508592525 + ... + 102508592544.

Almost surely, 2^{2050171850690} is an apocalyptic number.

2050171850690 is a deficient number, since it is larger than the sum of its proper divisors (1640137480570).

2050171850690 is a wasteful number, since it uses less digits than its factorization.

2050171850690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205017185076.

The product of its (nonzero) digits is 151200, while the sum is 44.

The spelling of 2050171850690 in words is "two trillion, fifty billion, one hundred seventy-one million, eight hundred fifty thousand, six hundred ninety".