2660972289 has 8 divisors (see below), whose sum is σ = 3548286912. Its totient is φ = 1773819600.

The previous prime is 2660972231. The next prime is 2660972299. The reversal of 2660972289 is 9822790662.

2660972289 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2660972289 - 2⁷ = 2660972161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2660972299) 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, 5239 + ... + 73139.

It is an arithmetic number, because the mean of its divisors is an integer number (443535864).

Almost surely, 2^2660972289 is an apocalyptic number.

It is an amenable number.

2660972289 is a deficient number, since it is larger than the sum of its proper divisors (887314623).

2660972289 is a wasteful number, since it uses less digits than its factorization.

2660972289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80967.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 2660972289 is about 51584.6129092775. The cubic root of 2660972289 is about 1385.7347800374.

The spelling of 2660972289 in words is "two billion, six hundred sixty million, nine hundred seventy-two thousand, two hundred eighty-nine".