2689437604 has 48 divisors (see below), whose sum is σ = 5716569600. Its totient is φ = 1080760320.

The previous prime is 2689437557. The next prime is 2689437607. The reversal of 2689437604 is 4067349862.

It is not an unprimeable number, because it can be changed into a prime (2689437607) 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, 118572 + ... + 139420.

It is an arithmetic number, because the mean of its divisors is an integer number (119095200).

Almost surely, 2^2689437604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2689437604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2858284800).

2689437604 is an abundant number, since it is smaller than the sum of its proper divisors (3027131996).

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

2689437604 is a wasteful number, since it uses less digits than its factorization.

2689437604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21148 (or 21146 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 49.

The square root of 2689437604 is about 51859.7879286061. The cubic root of 2689437604 is about 1390.6584882725.

The spelling of 2689437604 in words is "two billion, six hundred eighty-nine million, four hundred thirty-seven thousand, six hundred four".