4012656669 has 24 divisors (see below), whose sum is σ = 6627029760. Its totient is φ = 2291921568.

The previous prime is 4012656649. The next prime is 4012656679. The reversal of 4012656669 is 9666562104.

4012656669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4012656669 - 2¹¹ = 4012654621 is a prime.

It is a super-3 number, since 3×4012656669³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4012656619) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141147 + ... + 167175.

It is an arithmetic number, because the mean of its divisors is an integer number (276126240).

Almost surely, 2^4012656669 is an apocalyptic number.

It is an amenable number.

4012656669 is a deficient number, since it is larger than the sum of its proper divisors (2614373091).

4012656669 is a wasteful number, since it uses less digits than its factorization.

4012656669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28489 (or 28486 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 4012656669 is about 63345.5339309726. The cubic root of 4012656669 is about 1589.0735566522.

The spelling of 4012656669 in words is "four billion, twelve million, six hundred fifty-six thousand, six hundred sixty-nine".