2689471964412 has 48 divisors (see below), whose sum is σ = 7018881990400. Its totient is φ = 890553625200.

The previous prime is 2689471964407. The next prime is 2689471964419. The reversal of 2689471964412 is 2144691749862.

2689471964412 is a `hidden beast` number, since 2 + 6 + 8 + 94 + 71 + 9 + 64 + 412 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2689471964412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689471964419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82442362 + ... + 82474977.

Almost surely, 2^{2689471964412} is an apocalyptic number.

It is an amenable number.

2689471964412 is an abundant number, since it is smaller than the sum of its proper divisors (4329410025988).

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

2689471964412 is a wasteful number, since it uses less digits than its factorization.

2689471964412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164917503 (or 164917495 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The spelling of 2689471964412 in words is "two trillion, six hundred eighty-nine billion, four hundred seventy-one million, nine hundred sixty-four thousand, four hundred twelve".