2061808695 has 16 divisors (see below), whose sum is σ = 3665437920. Its totient is φ = 1099631232.

The previous prime is 2061808681. The next prime is 2061808699. The reversal of 2061808695 is 5968081602.

2061808695 is a `hidden beast` number, since 20 + 618 + 0 + 8 + 6 + 9 + 5 = 666.

It is not a de Polignac number, because 2061808695 - 2⁵ = 2061808663 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2061808695.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061808699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7636194 + ... + 7636463.

It is an arithmetic number, because the mean of its divisors is an integer number (229089870).

Almost surely, 2^2061808695 is an apocalyptic number.

2061808695 is a deficient number, since it is larger than the sum of its proper divisors (1603629225).

2061808695 is a wasteful number, since it uses less digits than its factorization.

2061808695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15272671 (or 15272665 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 2061808695 is about 45407.1436560372. The cubic root of 2061808695 is about 1272.7686092086.

The spelling of 2061808695 in words is "two billion, sixty-one million, eight hundred eight thousand, six hundred ninety-five".