2642689107 has 24 divisors (see below), whose sum is σ = 3878458064. Its totient is φ = 1733586624.

The previous prime is 2642689097. The next prime is 2642689111. The reversal of 2642689107 is 7019862462.

It is a happy number.

It is not a de Polignac number, because 2642689107 - 2¹¹ = 2642687059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2642689307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 729633 + ... + 733245.

Almost surely, 2^2642689107 is an apocalyptic number.

2642689107 is a deficient number, since it is larger than the sum of its proper divisors (1235768957).

2642689107 is a wasteful number, since it uses less digits than its factorization.

2642689107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4899 (or 4896 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 2642689107 is about 51407.0919912807. The cubic root of 2642689107 is about 1382.5537510916.

The spelling of 2642689107 in words is "two billion, six hundred forty-two million, six hundred eighty-nine thousand, one hundred seven".