2689145334 has 24 divisors (see below), whose sum is σ = 5828773392. Its totient is φ = 896029200.

The previous prime is 2689145219. The next prime is 2689145339. The reversal of 2689145334 is 4335419862.

2689145334 is a `hidden beast` number, since 26 + 8 + 91 + 4 + 533 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2689145334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689145339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19884 + ... + 75984.

It is an arithmetic number, because the mean of its divisors is an integer number (242865558).

Almost surely, 2^2689145334 is an apocalyptic number.

2689145334 is an abundant number, since it is smaller than the sum of its proper divisors (3139628058).

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

2689145334 is a wasteful number, since it uses less digits than its factorization.

2689145334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58772 (or 58769 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 2689145334 is about 51856.9699654733. The cubic root of 2689145334 is about 1390.6081106422.

The spelling of 2689145334 in words is "two billion, six hundred eighty-nine million, one hundred forty-five thousand, three hundred thirty-four".