2606693985 has 48 divisors (see below), whose sum is σ = 5184466560. Its totient is φ = 1186848000.

The previous prime is 2606693981. The next prime is 2606694019. The reversal of 2606693985 is 5893966062.

It is not a de Polignac number, because 2606693985 - 2² = 2606693981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2606693981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62581 + ... + 95549.

It is an arithmetic number, because the mean of its divisors is an integer number (108009720).

Almost surely, 2^2606693985 is an apocalyptic number.

It is an amenable number.

2606693985 is a deficient number, since it is larger than the sum of its proper divisors (2577772575).

2606693985 is a wasteful number, since it uses less digits than its factorization.

2606693985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33238 (or 33235 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The square root of 2606693985 is about 51055.7928642774. The cubic root of 2606693985 is about 1376.2479442735.

The spelling of 2606693985 in words is "two billion, six hundred six million, six hundred ninety-three thousand, nine hundred eighty-five".