2689894533 has 4 divisors (see below), whose sum is σ = 3586526048. Its totient is φ = 1793263020.

The previous prime is 2689894523. The next prime is 2689894549. The reversal of 2689894533 is 3354989862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2689894533 - 2⁴ = 2689894517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689894523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448315753 + ... + 448315758.

It is an arithmetic number, because the mean of its divisors is an integer number (896631512).

Almost surely, 2^2689894533 is an apocalyptic number.

It is an amenable number.

2689894533 is a deficient number, since it is larger than the sum of its proper divisors (896631515).

2689894533 is an equidigital number, since it uses as much as digits as its factorization.

2689894533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896631514.

The product of its digits is 11197440, while the sum is 57.

The square root of 2689894533 is about 51864.1931683122. The cubic root of 2689894533 is about 1390.7372403270.

The spelling of 2689894533 in words is "two billion, six hundred eighty-nine million, eight hundred ninety-four thousand, five hundred thirty-three".