2691027489 has 8 divisors (see below), whose sum is σ = 3590368192. Its totient is φ = 1792852560.

The previous prime is 2691027379. The next prime is 2691027499. The reversal of 2691027489 is 9847201962.

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

It is not a de Polignac number, because 2691027489 - 2⁸ = 2691027233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2691027499) 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, 286042 + ... + 295299.

It is an arithmetic number, because the mean of its divisors is an integer number (448796024).

Almost surely, 2^2691027489 is an apocalyptic number.

It is an amenable number.

2691027489 is a deficient number, since it is larger than the sum of its proper divisors (899340703).

2691027489 is a wasteful number, since it uses less digits than its factorization.

2691027489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582887.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 2691027489 is about 51875.1143516812. The cubic root of 2691027489 is about 1390.9324676761.

The spelling of 2691027489 in words is "two billion, six hundred ninety-one million, twenty-seven thousand, four hundred eighty-nine".