2385194985 has 32 divisors (see below), whose sum is σ = 4242775680. Its totient is φ = 1271375424.

The previous prime is 2385194971. The next prime is 2385194989. The reversal of 2385194985 is 5894915832.

2385194985 is a `hidden beast` number, since 2 + 3 + 8 + 519 + 49 + 85 = 666.

It is not a de Polignac number, because 2385194985 - 2⁴ = 2385194969 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2385194989) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298867 + ... + 306743.

It is an arithmetic number, because the mean of its divisors is an integer number (132586740).

Almost surely, 2^2385194985 is an apocalyptic number.

It is an amenable number.

2385194985 is a deficient number, since it is larger than the sum of its proper divisors (1857580695).

2385194985 is a wasteful number, since it uses less digits than its factorization.

2385194985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10134 (or 10128 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The square root of 2385194985 is about 48838.4580530549. The cubic root of 2385194985 is about 1336.1071739309.

The spelling of 2385194985 in words is "two billion, three hundred eighty-five million, one hundred ninety-four thousand, nine hundred eighty-five".