1985277194 has 16 divisors (see below), whose sum is σ = 3069887040. Its totient is φ = 962442720.

The previous prime is 1985277193. The next prime is 1985277209. The reversal of 1985277194 is 4917725891.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1985277193) 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, 106622 + ... + 123849.

It is an arithmetic number, because the mean of its divisors is an integer number (191867940).

Almost surely, 2^1985277194 is an apocalyptic number.

1985277194 is a deficient number, since it is larger than the sum of its proper divisors (1084609846).

1985277194 is a wasteful number, since it uses less digits than its factorization.

1985277194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230605.

The product of its digits is 1270080, while the sum is 53.

The square root of 1985277194 is about 44556.4495219267. The cubic root of 1985277194 is about 1256.8218370245.

The spelling of 1985277194 in words is "one billion, nine hundred eighty-five million, two hundred seventy-seven thousand, one hundred ninety-four".