2661879107 has 4 divisors (see below), whose sum is σ = 2676750120. Its totient is φ = 2647008096.

The previous prime is 2661879083. The next prime is 2661879109. The reversal of 2661879107 is 7019781662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2661879107 - 2¹⁰ = 2661878083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2661879109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7435238 + ... + 7435595.

It is an arithmetic number, because the mean of its divisors is an integer number (669187530).

Almost surely, 2^2661879107 is an apocalyptic number.

2661879107 is a deficient number, since it is larger than the sum of its proper divisors (14871013).

2661879107 is a wasteful number, since it uses less digits than its factorization.

2661879107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14871012.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 2661879107 is about 51593.4017777467. The cubic root of 2661879107 is about 1385.8921744517.

The spelling of 2661879107 in words is "two billion, six hundred sixty-one million, eight hundred seventy-nine thousand, one hundred seven".