2691289452 has 48 divisors (see below), whose sum is σ = 6315563520. Its totient is φ = 891987072.

The previous prime is 2691289451. The next prime is 2691289463. The reversal of 2691289452 is 2549821962.

It is not an unprimeable number, because it can be changed into a prime (2691289451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1968073 + ... + 1969439.

It is an arithmetic number, because the mean of its divisors is an integer number (131574240).

Almost surely, 2^2691289452 is an apocalyptic number.

It is an amenable number.

2691289452 is an abundant number, since it is smaller than the sum of its proper divisors (3624274068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2691289452 is a wasteful number, since it uses less digits than its factorization.

2691289452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190 (or 2188 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 2691289452 is about 51877.6392292479. The cubic root of 2691289452 is about 1390.9776005012.

The spelling of 2691289452 in words is "two billion, six hundred ninety-one million, two hundred eighty-nine thousand, four hundred fifty-two".