2069812687 has 2 divisors, whose sum is σ = 2069812688. Its totient is φ = 2069812686.

The previous prime is 2069812673. The next prime is 2069812733. The reversal of 2069812687 is 7862189602.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2069812687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2069812687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2069812627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1034906343 + 1034906344.

It is an arithmetic number, because the mean of its divisors is an integer number (1034906344).

Almost surely, 2^2069812687 is an apocalyptic number.

2069812687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2069812687 is an equidigital number, since it uses as much as digits as its factorization.

2069812687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 2069812687 is about 45495.1941088287. The cubic root of 2069812687 is about 1274.4134555982.

The spelling of 2069812687 in words is "two billion, sixty-nine million, eight hundred twelve thousand, six hundred eighty-seven".