2689144470 has 24 divisors (see below), whose sum is σ = 6991775856. Its totient is φ = 717105168.

The previous prime is 2689144441. The next prime is 2689144487. The reversal of 2689144470 is 744419862.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14939602 + ... + 14939781.

It is an arithmetic number, because the mean of its divisors is an integer number (291323994).

Almost surely, 2^2689144470 is an apocalyptic number.

2689144470 is an abundant number, since it is smaller than the sum of its proper divisors (4302631386).

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

2689144470 is a wasteful number, since it uses less digits than its factorization.

2689144470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29879396 (or 29879393 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 2689144470 is about 51856.9616348663. The cubic root of 2689144470 is about 1390.6079617119.

The spelling of 2689144470 in words is "two billion, six hundred eighty-nine million, one hundred forty-four thousand, four hundred seventy".