2689172912 has 20 divisors (see below), whose sum is σ = 5213446080. Its totient is φ = 1343767488.

The previous prime is 2689172911. The next prime is 2689172917. The reversal of 2689172912 is 2192719862.

It is not an unprimeable number, because it can be changed into a prime (2689172911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23648 + ... + 77055.

It is an arithmetic number, because the mean of its divisors is an integer number (260672304).

Almost surely, 2^2689172912 is an apocalyptic number.

It is an amenable number.

2689172912 is a deficient number, since it is larger than the sum of its proper divisors (2524273168).

2689172912 is a wasteful number, since it uses less digits than its factorization.

2689172912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102380 (or 102374 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 2689172912 is about 51857.2358692594. The cubic root of 2689172912 is about 1390.6128643284.

The spelling of 2689172912 in words is "two billion, six hundred eighty-nine million, one hundred seventy-two thousand, nine hundred twelve".