2689453830 has 32 divisors (see below), whose sum is σ = 7376788224. Its totient is φ = 614732256.

The previous prime is 2689453777. The next prime is 2689453831. The reversal of 2689453830 is 383549862.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2689453830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689453831) 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, 6403252 + ... + 6403671.

It is an arithmetic number, because the mean of its divisors is an integer number (230524632).

Almost surely, 2^2689453830 is an apocalyptic number.

2689453830 is an abundant number, since it is smaller than the sum of its proper divisors (4687334394).

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

2689453830 is a wasteful number, since it uses less digits than its factorization.

2689453830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12806940.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The square root of 2689453830 is about 51859.9443694264. The cubic root of 2689453830 is about 1390.6612849885.

The spelling of 2689453830 in words is "two billion, six hundred eighty-nine million, four hundred fifty-three thousand, eight hundred thirty".