2879650661 has 8 divisors (see below), whose sum is σ = 2968410240. Its totient is φ = 2792036608.

The previous prime is 2879650603. The next prime is 2879650673. The reversal of 2879650661 is 1660569782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2879650661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2879650601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281276 + ... + 291333.

It is an arithmetic number, because the mean of its divisors is an integer number (371051280).

Almost surely, 2^2879650661 is an apocalyptic number.

It is an amenable number.

2879650661 is a deficient number, since it is larger than the sum of its proper divisors (88759579).

2879650661 is a wasteful number, since it uses less digits than its factorization.

2879650661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572763.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 2879650661 is about 53662.3765873261. The cubic root of 2879650661 is about 1422.6997934722.

The spelling of 2879650661 in words is "two billion, eight hundred seventy-nine million, six hundred fifty thousand, six hundred sixty-one".