2061969198 has 16 divisors (see below), whose sum is σ = 4126265040. Its totient is φ = 686935296.

The previous prime is 2061969179. The next prime is 2061969209. The reversal of 2061969198 is 8919691602.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2061969198.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85315 + ... + 106782.

It is an arithmetic number, because the mean of its divisors is an integer number (257891565).

Almost surely, 2^2061969198 is an apocalyptic number.

2061969198 is an abundant number, since it is smaller than the sum of its proper divisors (2064295842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2061969198 is a wasteful number, since it uses less digits than its factorization.

2061969198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193891.

The product of its (nonzero) digits is 419904, while the sum is 51.

The square root of 2061969198 is about 45408.9109977326. The cubic root of 2061969198 is about 1272.8016348849.

The spelling of 2061969198 in words is "two billion, sixty-one million, nine hundred sixty-nine thousand, one hundred ninety-eight".