2105616767 has 2 divisors, whose sum is σ = 2105616768. Its totient is φ = 2105616766.

The previous prime is 2105616763. The next prime is 2105616781. The reversal of 2105616767 is 7676165012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2105616767 - 2² = 2105616763 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105616763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052808383 + 1052808384.

It is an arithmetic number, because the mean of its divisors is an integer number (1052808384).

Almost surely, 2^2105616767 is an apocalyptic number.

2105616767 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105616767 is an equidigital number, since it uses as much as digits as its factorization.

2105616767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 2105616767 is about 45886.9999782073. Note that the first 4 decimals coincide. The cubic root of 2105616767 is about 1281.7198493747.

The spelling of 2105616767 in words is "two billion, one hundred five million, six hundred sixteen thousand, seven hundred sixty-seven".