1950842861 has 8 divisors (see below), whose sum is σ = 2130338784. Its totient is φ = 1771704720.

The previous prime is 1950842849. The next prime is 1950842863. The reversal of 1950842861 is 1682480591.

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

It is a cyclic number.

It is not a de Polignac number, because 1950842861 - 2³⁰ = 877101037 is a prime.

It is a super-4 number, since 4×1950842861⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1950842863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77975 + ... + 99908.

It is an arithmetic number, because the mean of its divisors is an integer number (266292348).

Almost surely, 2^1950842861 is an apocalyptic number.

1950842861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1950842861 is a deficient number, since it is larger than the sum of its proper divisors (179495923).

1950842861 is a wasteful number, since it uses less digits than its factorization.

1950842861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178891.

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 1950842861 is about 44168.3468221304. The cubic root of 1950842861 is about 1249.5129539336.

The spelling of 1950842861 in words is "one billion, nine hundred fifty million, eight hundred forty-two thousand, eight hundred sixty-one".